BoP Lab / Michelin Raceway Road Atlanta

P2 vs SRF vs SM vs T4 pace at Michelin Raceway Road Atlanta

Quickest here: P2 1:22.533 Lucian Pancea, Super Tour Mar 2023 qualifying · SM 1:41.798 Danny Steyn, Super Tour Mar 2021 qualifying · T4 1:38.841 Jonathan Neudorf, Super Tour Mar 2023 qualifying

Lap times% of P2

P2SRFSMT4solid race · dashed qualifying · slower is lower

P2SRFSMT4solid race · dashed qualifying · each class's best lap as a share of P2's at the same event (the reference class, changeable above); 100% is level, higher is quicker

	Event	P2			SRF					SM					T4
	Event	Qual best	Race best	Trap	Qual best	Race best	Trap	vs P2	% of P2	Qual best	Race best	Trap	vs P2	% of P2	Qual best	Race best	Trap	vs P2	% of P2
	Super Tour Mar 2026 ST26MAR062026-03-06									1:42.324Skyler Cottrell · fastest of 52 · top 5 within 0.4s-0.524s (-0.51%)	1:42.611Charles Mactutus · fastest of 51 · top 5 within 0.2s-0.014s (-0.01%)	112.2James Newell+5.2 mph (+4.9%)			1:40.673Kevin Fryer · fastest of 5 · top 5 within 7.2s+0.697s (+0.70%)	1:40.736Ayden Rose · fastest of 5 · top 5 within 8.6s+1.082s (+1.09%)	121.0Angelica Sprehe+8.3 mph (+7.3%)
28 rule changes (SRF: 4, SM: 3, T4: 21)3 cars added · 3 induction · 3 tyres & wheels · 3 weight · 2 suspension & brakes · 1 aero · 1 removed · 3 wording · 9 othershowhide 2026-03-01 SRF SRF3 Spark Plugs #39899other 2026-03-01 T4 ND MX-5 Spec Line Rewrite Request #39802weight -100 lbs 2026-03-01 T4 4.0 Mustang spec line cleanup #39831induction 2026-02-01 T4 T4 and T3 Feedback #39230removed 2026-02-01 T4 T4 Mustang 4.0 #39489induction 2026-02-01 T4 Allow Alt Bushing Material in Toe Links #39607suspension & brakes 2026-01-01 T4 Alternate Placement of Fuse Panel and Electronics Request #39370other 2026-01-01 T4 Clarify T4 Brake Rotor Allowance #39503suspension & brakes 2025-12-01 T4 Classing 1995-99 Dodge Neon SOHC #39285cars added 2025-11-01 T4 02-06 Mini Cooper Gear Ratios #38966other 2025-11-01 T4 Reinstatement of the 2005-2010 Cobalt into T4 #38987cars added 2025-11-01 T4 Request to Classify Mercedes C230K #39080cars added 2025-11-01 T4 ND Gearset Request for T4 #39166other 2025-11-01 T4 E&O wheel size on ND #39168tyres & wheels 2025-11-01 T4 ND Spec Lines Wrong PT#'s #39170weight 2025-11-01 T4 Touring 4 Post-Runoffs BOP Adjustments and Changes #39251induction -100 lbs 2025-10-01 SRF Add HD Oil Cooler #38979other 2025-08-01 T4 Incorrect Touring Heading #38451wording 2025-07-01 T4 Allow B-Spec cars to run in T4 #38439other 2025-06-01 SM SMX Data Submission - Penalties #38248other 2025-06-01 SM Committee) SMX Penaly Clarification updated language #38337wording 2025-06-01 T4 T4 Mustang #38059weight -100 lbs 2025-06-01 T4 SSC tire allowance #38216tyres & wheels 2025-05-01 SM Clarify Tire Marking Regs #38005tyres & wheels 2025-05-01 T4 Correct Ring and Pinion Ratio to T3, Sorry I Mean T4 3.7 V6 Stang #38041wording 2025-05-01 T4 T4 Mustang #38058aero 2025-04-01 SRF Driver Safety & Comfort #37966other 2025-04-01 SRF Update SADEV transmission specs #37992other
	Super Tour Mar 2025 ST25MAR072025-03-07									1:42.848Sean Noonan · fastest of 35 · top 5 within 0.2s+0.228s (+0.22%)	1:42.625Sean Noonan · fastest of 33 · top 5 within 0.6s-0.370s (-0.36%)	107.0Sean Noonan+1.8 mph (+1.7%)			1:39.976Ethan Barker · fastest of 4 · top 4 within 1.9s-0.527s (-0.52%)	1:39.654Marc Cefalo · fastest of 4 · top 4 within 2.7s-1.425s (-1.41%)	112.8Robert Spence-1.3 mph (-1.1%)
54 rule changes (P2: 3, SRF: 6, SM: 5, T4: 40)13 weight · 7 cars added · 7 tyres & wheels · 6 suspension & brakes · 5 engine · 2 aero · 2 induction · 1 removed · 2 wording · 9 other · FE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure.showhide 2025-02-01 T4 Ford Mustang V6 (05-14) #37516other 2025-02-01 T4 Request to Classify Club Spec in Appropriate Touring Classes #37523cars added 2025-01-01 T4 Remove spec lines that have expired #37269induction 2025-01-01 T4 2016-2018 Mazda Miata MX5 #37085weight -75 lbs 2024-12-01 P2 2000 cc Pinto Engine Car Weight #37187weight 2024-12-01 SM E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other 2024-12-01 T4 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft #36484suspension & brakes 2024-12-01 T4 R53 Mini Cooper S Weight Reduction Request #36612weight 2024-12-01 T4 Allowable Wheel Offset #36855tyres & wheels 2024-12-01 T4 Fuel Emissions Components #37076engine 2024-12-01 T4 2019-2024 Mazda 3 for T4 #37077cars added 2024-12-01 T4 fix brake wording #37129suspension & brakes 2024-12-01 T4 Evaporative emissions systems #37130engine 2024-12-01 T4 Allow Spec MX5 upgrade kit for 2009-11 RX8 S2 Transmision #37140other 2024-12-01 T4 Move Spec Boxster to T4 #37158cars added 2024-12-01 T4 3.7 Mustangs to T4 #37188cars added 2024-12-01 T4 BMW 320i Spec Line #37204other 2024-12-01 T4 MX5 2006-2015 NC Help #37221other 2024-12-01 T4 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual #37224cars added 2024-12-01 T4 Civic SI in T4 #37248weight -50 lbs 2024-12-01 T4 2006-2015 T4 NC Mx5 spec line #37278weight 2024-12-01 T4 ND MX-5 wheel allowance #37279tyres & wheels 2024-12-01 T4 T4 BOP #37281weight +75 lbs 2024-12-01 T4 Allow 7.5 #37286tyres & wheels 2024-11-01 T4 Bop Request 06-11 Honda Civic Si #37013other 2024-10-01 SRF Update SRF3 Air Filter Rule #36681other 2024-10-01 SRF Update SRF Brake Rotor Thickness #36687suspension & brakes 2024-10-01 SRF Hoosier Tire Decal Placement #36739tyres & wheels 2024-09-01 SM SMX Camera Rule Correction #36496wording 2024-09-01 SM Committee) AIM ECU Protocol #36556engine 2024-09-01 SM Committee) OE versus OEM Definitons #36608other 2024-09-01 SM Committee) Shifter Bushing #36611suspension & brakes 2024-09-01 SRF Protest Fee Clarification #36540wordingwordingFE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure. 2024-09-01 SRF Update to Letter 36619 with new Hoosier Contingency Decal Info #36624tyres & wheels 2024-08-01 SRF Update Rain Tire Rule and Hoosier Decal Placement #36436tyres & wheels 2024-08-01 T4 T4 Camaro V6 weight reduction #36232weight 2024-08-01 T4 BOP adjustment for ND MX5s #36345weight -50 lbs 2024-07-01 T4 Mustang T2/T3 #35877other 2024-07-01 T4 Homologation of car to T4 #36030cars added 2024-07-01 T4 T2-T4 Driveshaft Mistake...? #36050weight 2024-07-01 T4 MINI Cooper S Spec Lines Corrections. #36086removed 2024-07-01 T4 Allow Removal of Sound Tubes #36130induction 2024-07-01 T4 B8/8.5 Audi S4 T3 and T2 #36195cars added 2024-06-01 T4 Allow OEM Front Spoiler 06-08 Miata in T4 #35941aero 2024-06-01 T4 T4 Mustang Weight Reduction In T4 Spec #36051weight -50 lbs 2024-06-01 T4 R53 Mini Cooper S spec line request In #36056suspension & brakes 2024-05-01 P2 CN Spec ECU #35835engine 2024-05-01 P2 E&O - Correct FIA Group CN spec line notes #35900tyres & wheels 2024-05-01 T4 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj. #35761engine 2024-05-01 T4 2023 ND2 Miata Classification and Allowances #35837weight 2024-05-01 T4 Errors and Omissions for 06-09 VW Rabbit Rotor #35851suspension & brakes 2024-05-01 T4 Driveshafts #35916weight 2024-05-01 T4 GCR ERROR - letter not properly applied to GCR #35999weight 2024-04-01 T4 Corrections to T4 RX8 Spec line #35767aero
	Super Tour Mar 2024 ST24MAR082024-03-08	1:24.228Lucian Pancea · fastest of 4 · top 4 within 5.2s+1.695s (+2.05%)	1:26.233Sherman Chao · fastest of 4 · top 4 within 17.9s+2.429s (+2.90%)	134.0Lucian Pancea-12.5 mph (-8.5%)						1:42.620Danny Steyn · fastest of 47 · top 5 within 0.4s+0.001s (+0.00%)	1:42.995Charles Mactutus · fastest of 46 · top 5 within 0.1s+0.442s (+0.43%)	105.2Tyler Brown-6.9 mph (-6.2%)	+16.762squal +18.392s	119.4%qual 121.8%	1:40.503Marc Cefalo · fastest of 6 · top 5 within 1.5s+1.662s (+1.68%)	1:41.079Kevin Fryer · fastest of 6 · top 5 within 3.0s+0.623s (+0.62%)	114.0Angelica Sprehe-9.4 mph (-7.6%)	+14.846squal +16.275s	117.2%qual 119.3%
34 rule changes (P2: 7, SRF: 6, T4: 21)8 suspension & brakes · 7 weight · 4 engine · 3 induction · 3 tyres & wheels · 1 cars added · 2 wording · 6 othershowhide 2024-03-01 T4 Reorganize Spec Lines #35375induction 2024-03-01 T4 Allow any 400lb rear spring in the RX8 #35433suspension & brakes 2024-03-01 T4 370Z Brake Rotor Size Correction #35487suspension & brakes 2024-02-01 T4 More Car Lightening Stuff #35319weight 2024-02-01 T4 ND Missed Items #35352other 2024-02-01 T4 Inclusion of B-C spec cars in T4 #35374other 2024-02-01 T4 T2-T4 Set expiration dates on spec lines #35378induction 2024-01-01 P2 E&O - Clarify B.1 modified engine range in AMAC spec lines #35225engine 2024-01-01 P2 Replacement Engine Crankcase for 07/08 Suzuki GSX-R1000 Engines #35340engine 2024-01-01 SRF Update SRF Rain / Brake Rule #34706suspension & brakes 2024-01-01 SRF Update SRF Brake Light Rule v1 #34853suspension & brakes 2024-01-01 SRF SRF / SRF3 Rule Updates #35268weight 2024-01-01 T4 Mazda MX-5 ND1 Spec Line Request #34232weight +50 lbs 2024-01-01 T4 BRZ/FRS/86 Spring Allowance #35038suspension & brakes 2024-01-01 T4 TSX Allowance #35219other 2024-01-01 T4 Requested Update of Model Years of 370Z #35231other 2023-12-01 P2 Correct Table 1 for Engine Date Range Specifications #35182engine 2023-10-01 SRF SRF Radiator Rule Update #34805other 2023-09-01 T4 Inclusion of similar car. (CLK 320) #34626other 2023-08-01 T4 Rules Clarification for Mazda RX8 Spec Line #34395weight 2023-08-01 T4 rule book corrections #34437wording 2023-08-01 T4 Ride Height Correction for the T3 Solstice. #34615suspension & brakes 2023-07-01 T4 2002-2006 Mini Cooper S R53 Spec Line Request #34336weight -50 lbs 2023-06-01 SRF Hoosier SRF Wet Front Tire Rule Update #34189tyres & wheels 2023-06-01 T4 05-06 Mini Wheel Weight #34112weight 2023-06-01 T4 06-09 VW Rabbit #34153induction 2023-06-01 T4 96-01 Audi a4 2.8 Spring Rate #34217suspension & brakes 2023-05-01 P2 Clarify minimum side body height requirement #34143tyres & wheels 2023-05-01 P2 Clarify closed cockpit single seat car allowance #34144wording 2023-05-01 SRF Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels 2023-04-01 P2 Remove redundant effective date language and update engine table #34012engine 2023-04-01 P2 E&O - Correct dimensional equivalents #34038weight 2023-04-01 T4 Request to Classify 2004-2008 Acura TSX in T4 #33590cars added 2023-04-01 T4 T4 Mustang Brakes/Swaybar #34036suspension & brakes
	Super Tour Mar 2023 ST23MAR102023-03-10	1:22.533Lucian Pancea · fastest of 4 · top 4 within 4.2s-1.480s (-1.76%)	1:23.804Lucian Pancea · fastest of 4 · top 4 within 4.6s+0.733s (+0.88%)	146.5Lucian Pancea-3.5 mph (-2.4%)						1:42.619Charles Mactutus · fastest of 48 · top 5 within 0.7s-0.195s (-0.19%)	1:42.553Charles Mactutus · fastest of 47 · top 5 within 0.4s+0.689s (+0.68%)	112.2Jonathan Neudorf-1.3 mph (-1.2%)	+18.749squal +20.086s	122.4%qual 124.3%	1:38.841Jonathan Neudorf · fastest of 6 · top 5 within 1.8s-1.722s (-1.71%)	1:40.456Marc Cefalo · fastest of 5 · top 5 within 1.0s-0.758s (-0.75%)	123.5Angelica Sprehe+5.0 mph (+4.3%)	+16.652squal +16.308s	119.9%qual 119.8%
34 rule changes (P2: 7, SRF: 3, SM: 2, T4: 22)8 suspension & brakes · 7 weight · 5 tyres & wheels · 2 cars added · 2 engine · 2 wording · 8 othershowhide 2023-03-01 SRF Update SRF Brake Rule #33469suspension & brakes 2023-03-01 T4 BMW 320I intercooler #33762other 2023-02-01 T4 2019-2021 Mazda MX5 ND2 #32027cars added 2023-02-01 T4 Mustang OEM Grill Request #33333other 2023-02-01 T4 Mazda OEM LSD was letter 32655 typo #33666wording 2023-01-01 P2 Request to Classify Sebeco NP01 #33378cars added 2023-01-01 P2 Radical spec line clarifications #33485weight 2023-01-01 P2 E&O original class intent #33519weight 2023-01-01 P2 Update Engine Table Spec Line B.1 #33608engine 2023-01-01 SM BOP for NB1 and NB2 #32309weight 2023-01-01 T4 Allowable Springs and Sway Bars for 06-11 Civic si Spec Line #33294suspension & brakes 2023-01-01 T4 Touring (T2-T5) Category #33617tyres & wheels 2023-01-01 T4 ENO 9.1.9.2.D.1.e.1.a. #33651other 2022-12-01 T4 T4 mustang #32789weight -25 lbs 2022-12-01 T4 Mazda OEM LSD was letter 32655 #32933weight -25 lbs 2022-10-01 T4 Another 2022 BRZ/86 T3 request #32945weight +225 lbs 2022-08-01 T4 04-09 Mazda3 Balance Shaft Delete Kit #32795other 2022-06-01 SRF SRF Tire Rule Update #32614tyres & wheels 2022-06-01 SRF Brake, seal, and air filter clarifications #32670suspension & brakes 2022-06-01 T4 Request Wider Wheels for Hyundai Tiburon #32536tyres & wheels 2022-05-01 P2 E&O Clarification of Chassis Construction Requirements #32469tyres & wheels 2022-05-01 P2 Clean up P2 wording #32525wording 2022-05-01 T4 Request to Add Spec Line for 2004-2009 Mazda3 i 2.0 #32395weight 2022-05-01 T4 Request Alternate Front & Rear Strut/Shock Top Hats #32452suspension & brakes 2022-04-01 P2 After Market to Aftermarket #32373other 2022-04-01 SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes 2022-04-01 T4 Request to Allow the Use of Aftermarket ECU's in Touring #31067engine 2022-04-01 T4 Request JWT BSR Kit for 02-06 Nissan Sentra SE-R/Spec V #31685other 2022-04-01 T4 Please Confirm Touring 4 (98-00) BMW 323 is E46 generation #31972other 2022-04-01 T4 RX-8 Spring Part Numbers (E&O) #32151suspension & brakes 2022-04-01 T4 04-09 Mazda3 Tire Limit Clarification #32249tyres & wheels 2022-04-01 T4 Shock Part Number Errors & Omissions #32252suspension & brakes 2022-04-01 T4 Update Solo Spec Coupe to latest '20 specs for Road Racing #32262other 2022-04-01 T4 Request 2016 Mazda MX5 springs #32265suspension & brakes
	Super Tour Mar 2022 ST22MAR122022-03-12	1:24.013Robert Iversen · fastest of 6 · top 5 within 3.1s-3.393s (-3.88%)	1:23.071Robert Iversen · fastest of 6 · top 5 within 4.0s-3.049s (-3.54%)	150.1Robert Iversen+13.2 mph (+9.6%)						1:42.814Connor Zilisch · fastest of 60 · top 5 within 0.3s+1.016s (+1.00%)	1:41.864Travis Wiley · fastest of 60 · top 5 within 0.7s-0.700s (-0.68%)	113.5Junior Brock-0.1 mph (-0.1%)	+18.793squal +18.801s	122.6%qual 122.4%	1:40.563Ethan Barker · fastest of 6 · top 5 within 6.1s-0.030s (-0.03%)	1:41.214Richard Astacio · fastest of 6 · top 5 within 3.0s+1.095s (+1.09%)	118.4Angelica Sprehe-1.3 mph (-1.1%)	+18.143squal +16.550s	121.8%qual 119.7%
41 rule changes (P2: 13, SRF: 5, SM: 1, T4: 22)7 tyres & wheels · 7 weight · 6 engine · 5 suspension & brakes · 2 cars added · 2 induction · 1 aero · 1 removed · 3 wording · 7 othershowhide 2022-03-01 P2 Add spec line for Beasley B2 #32147weight 2022-03-01 P2 E&O Table 1 spec line wing terminology #32148aero 2022-03-01 P2 E&O class name #32196other 2022-03-01 T4 Reply to letter #31486/29879 T2-T4 Grill openings #31935suspension & brakes 2022-03-01 T4 BRZ vs BRZ TS #32022tyres & wheels 2022-02-01 P2 E&O Engine section #31969engine 2022-02-01 T4 MX-5 Durability Detailed #31102weight 2022-02-01 T4 Request Allowances for 2005 - 2010 Mustang #31624wording 2022-01-01 P2 E&O letter #31539 – Control Area definition #31783tyres & wheels 2022-01-01 T4 Reply to letter 29879 T2-T4 Grill Openings #31486suspension & brakes 2022-01-01 T4 Please Adjust 98-00 BMW 323 Min Weight to Reflect Current Class #31595weight -200 lbs 2022-01-01 T4 Consolidate 12-13 and 14-15 Honda Civic Si spec lines for T4 #31596removed 2022-01-01 T4 Request to clarify radiator hoses #31682wording 2022-01-01 T4 Clarify Permitted/Allowed #31743suspension & brakes 2022-01-01 T4 Correct RSX wording #31746tyres & wheels 2022-01-01 T4 Camaro #31751suspension & brakes 2021-12-01 P2 BoP adjustment effective 1-1-22 #31538engine 2021-12-01 P2 E&O clarification of "Control Area" definition #31539tyres & wheels 2021-12-01 SRF Three Updates to SRF Rules #31523weight 2021-12-01 T4 Nissan Sentra SE-R Spec. V #30958cars added 2021-12-01 T4 Mazda RX-8 Spec Line Suspension Parts #31113induction 2021-12-01 T4 Diverter Valve Plunger Upgrade #31307engine 2021-12-01 T4 Adjust Honda FWD in T4 to encourage more Drivetrain Diversity #31472tyres & wheels 2021-12-01 T4 Touring 4 BOP adjustments for 2022 #31482weight -175 lbs 2021-11-01 T4 Request to Classify 2014 VW Jetta 1.8t TSI #30436cars added 2021-09-01 P2 P2 CN Engine Rebuild Clarification #31000engine 2021-08-01 P2 F5 P2 Conversion #30856other 2021-08-01 P2 Clarify minimum body width requirement #30859tyres & wheels 2021-08-01 SRF SRF Wet Tires #30849tyres & wheels 2021-08-01 SRF SADEV-SRF3 Transmission #30926other 2021-08-01 SRF SRF Update Maintenance, Repairs and Seals #30961engine 2021-07-01 T4 Wrong Part Number on 320i Spec Line #30645wording 2021-06-01 SRF SRF3 Alternator Pulley #30684weight 2021-06-01 T4 Civic Type R Brake Rotors #29817suspension & brakes 2021-05-01 P2 E&O tonneau cover provision in cockpit opening section #30459other 2021-05-01 P2 Remove effective dates in Table 1 #30468other 2021-05-01 P2 E&O Maximum Valves Per Cylinder #30560engine 2021-05-01 T4 Mini Cooper Spec Line Anomalies #30478weight 2021-05-01 T4 Request CAI Mustang in T4 #30562induction 2021-04-01 SM Updates - Obsolete Parts & BOP Parts #30438other 2021-04-01 T4 Request consistency review in GCR #30263other
	Super Tour Mar 2021 ST21MAR192021-03-19	1:27.406Lucas Mann · fastest of 4 · top 4 within 5.9s	1:26.120Lucian Pancea · fastest of 3 · top 3 within 3.8s	136.9Lucian Pancea						1:41.798Danny Steyn · fastest of 68 · top 5 within 0.7s	1:42.564Preston Pardus · fastest of 67 · top 5 within 0.2s	113.6Marc Cefalo	+16.444squal +14.392s	119.1%qual 116.5%	1:40.593Thomas Fowler · fastest of 8 · top 5 within 3.1s	1:40.119Thomas Fowler · fastest of 8 · top 5 within 2.1s	119.7Richard Dickey	+13.999squal +13.187s	116.3%qual 115.1%
86 earlier rule changes on record, in force before Super Tour Mar 2021 (from 2019)14 weight · 12 engine · 12 suspension & brakes · 9 tyres & wheels · 8 cars added · 7 induction · 2 aero · 8 wording · 14 othershowhide 2021-03-01 P2 Add a new spec line for a 2-cycle, 3-cylinder engine up to 820cc #30272engine 2021-03-01 SRF Mandatory identification: #30223engine 2021-03-01 T4 E & O T4 Mustang Wheels #30245tyres & wheels 2021-02-01 T4 2021 Toyota Supra #29567cars added 2021-02-01 T4 06-15 MX-5 Durability #29781other 2021-02-01 T4 Request for Update to T4 Spec Line for Chevrolet Sonic (2011-) #29838induction 2021-02-01 T4 NC MX-5 06-15 Part Number updates for 2021 #29921weight 2021-02-01 T4 BMW Z4 2.5L (03-05) Spec Line #30037weight -50 lbs 2021-02-01 T4 Sway Bars for T4 2016+ MX5 Mazda #30063suspension & brakes 2021-02-01 T4 Change part numbers on BRZ, FRS lines in T4 #30104wording 2021-02-01 T4 T4 Mustang Axle Ratio and Wheels #30149tyres & wheels 2021-01-01 T4 Request to Classify BMW M2 CS #29523cars added 2021-01-01 T4 Allow the SpecMX-5 Update Kit Into Touring 4 for the MX-5 #29681other 2021-01-01 T4 Request Mustang 8.8ÃƒÂ¢Ã¢â€šÂ¬Ã‚Â rear axle replacement #29860other 2021-01-01 T4 Cap year range on all 86s #29908other 2020-12-01 P2 Balance of Performance adjustments effective 01-01-2021 #29822induction 2020-12-01 SRF SRF Shocks, Springs and Ride Height. #29688suspension & brakes 2020-12-01 T4 Alfa Romeo 4C Launch Edition #29531other 2020-12-01 T4 Post Runoffs Feedback for T4 #29752tyres & wheels -50 lbs 2020-10-01 SM Radiator E&O Clarifications #29294engine 2020-09-01 P2 E&O clarification of P2 rear wing requirements #29205aero 2020-08-01 SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes 2020-08-01 T4 Scion FRS Solo Spec Coupe Gear Ratio #29021other 2020-07-01 T4 T4 RX8 bodywork clarification #28941aero 2020-07-01 T4 2006-2015 MX-5 Clarification #28942tyres & wheels 2020-07-01 T4 Request to Add a Vehicle to the Roster (contd.) #27698other 2020-06-01 P2 Classify Elan NP01 in P2 Table 1 #28812cars added 2020-06-01 T4 Request to Classify 2004 Mercedes Benz 320 CLK #27663cars added 2020-05-01 P2 SCCA Enterprises ESR / P2 engine restrictor testing #28669induction 2020-05-01 SRF SRF Bump Stop Correction #27019suspension & brakes 2020-05-01 T4 Request to change allowed header part # for T4 06-15 Miata #28223wording 2020-05-01 T4 Z3M Roadster Weight #28437weight 2020-04-01 P2 Add ESR inlet restrictor #27869induction 2020-03-01 P2 Request for Fly by Wire Rule Wording Change #28247engine 2020-03-01 T4 Request for 12-13 and 14-15 Honda Civic Springs #27848suspension & brakes 2020-03-01 T4 Request to Clarify T4 05-10 Mustang Spring Allowance #27899suspension & brakes 2020-02-01 T4 Request to Allow Brake Upgrade on T4 Mustang #27329suspension & brakes 2020-02-01 T4 Please Switch the Solstice GXP as Specified in T2, to T3 #27413weight -50 lbs 2020-02-01 T4 Request to Classify all Mazda RX8 Models in T3/T4 #27606cars added 2020-02-01 T4 Request for 2014-2018 Mazda 3 GT Brakes #27659suspension & brakes 2020-02-01 T4 Request to allow aftermarket OEM coolant expansion tank #27763engine 2020-02-01 T4 Request to allow aftermarket OEM power steering reservoir #27764wording 2020-02-01 T4 Request for Factory Installed Wings on Subaru BRZ #27831other 2020-02-01 T4 Request for Replacement Clutches #27892other 2020-02-01 T4 Request to Classify Chevy Sonic 1.4 In T4 #27906cars added 2020-02-01 T4 Weight Change Request for 1999 Mazda Miata #28129weight -50 lbs 2020-01-01 P2 Request for addition of BMW Engine in P2 Engine Table #27821engine 2020-01-01 T4 Clarification of On-Board Fire System for T2 #27183wording 2020-01-01 T4 Mustang Ecoboost and GT Transmission #27439other 2020-01-01 T4 BRZ/FRS/86 Tire Size in T4 #27660tyres & wheels 2020-01-01 T4 NC MX5 2006-2015 Spec Adjustment Request #27739weight -75 lbs 2020-01-01 T4 T4 RX8 Classification Error #27902wording 2020-01-01 T4 Request to add Toyota 86 GT to Spec Line #27910other 202-01-01 SRF SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes 2019-12-01 SRF SRF Tire Warmer Rule #27622tyres & wheels 2019-12-01 SRF SRF / SRF3 Nose Weight Reduction #27706weight 2019-12-01 SRF SRF / SRF3 Majors & Regional Class Updates #27723other 2019-10-01 P2 Update Engine Table Line E notes #27414engine 2019-08-31 P2 Update P2 Engine Table spec lines to reflect 3/1/2019 #27254engine 2019-08-31 T4 Request spare tire/wheel clarification #27012tyres & wheels 2019-08-31 T4 Research E&O Mazda MX5 #27112weight 2019-07-01 P2 E&O Transmissions #27006tyres & wheels 2019-07-01 SRF SRF Dash Windscreen Kit #27028other 2019-07-01 T4 MR2 Spyder Year Correction #26936wording 2019-06-01 P2 Request to restrict all cars #26246weight 2019-05-31 T4 Request to allow piggy back ECU on 2000 Mazda Protégé #26085engine 2019-05-31 T4 Request helper spring as optional #26678suspension & brakes 2019-04-01 T4 Request to classify 2000 - 2001 BMW 323 #25096cars added 2019-03-01 P2 Change Engine Table Lines B.1 & B.5 #25777engine 2019-03-01 P2 Change Line A.1 restrictor size #26429induction 2019-03-01 SM Request to allow aftermarket fuel filters. #26370wording 2019-03-01 T4 Correct Mazda MX-5 Hard Top Notes #26137weight 2019-03-01 T4 Consider opening class rules to allow any thermostat #26187wording 2019-03-01 T4 Cap 2016 Mazda Miata year at 2018 #26388other 2019-02-01 SM Request 99-00 replacement Wire harnesses #25602engine 2019-02-01 SM Organize and Clarify 9.1.7.C.1.o. #25913weight 2019-02-01 SM Strike Tire Tread Language #26123tyres & wheels 2019-02-01 T4 2012-2015 Honda Civic Si Performance Request #26129suspension & brakes 2019-01-01 P2 Request to Allow 1345cc Hayabusa Engines for Spec Line P2 Cars #25595engine 2019-01-01 P2 Change CN inlet restrictor implementation date #25816induction 2019-01-01 P2 Clarify Honda K20A-FD2 parts requirement #25950weight 2019-01-01 T4 Errors, Omissions, and Updates (Various) #22414weight 2019-01-01 T4 Request for Adjustments to fiat 124 specline #25371induction 2019-01-01 T4 Add Clarification to Spec Car Classifications Vehicle Spec #25774weight 2019-01-01 T4 Clarify Subframe Bushings Permitted for T2-T4 #25800suspension & brakes 2019-01-01 T4 Consider Solo SSC cross over classification into T4 #25802cars added

Best is the class's fastest lap in that event's qualifying or race sessions, with the driver who set it, how many cars set a time that session and how close the top five were; a best from fewer than three cars is greyed. With two or more classes, "vs" is the gap of each class's best to the first class's at the same event. "% of P2" is the class's best as a share of P2's best at the same event (100% is level, less is quicker): weather and track condition move every class together, so this compares across years where the raw times do not. It still breaks when P2's own field changes or one session was wet and another dry. Newest event first. The coloured figure under each value is the change from the previous event that has one (green is quicker, red slower). Whole laps only, so events with different sector layouts still compare. Weather and track condition are not accounted for.