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BoP Lab / Michelin Raceway Road Atlanta

T2 vs SMX vs SM vs FB pace at Michelin Raceway Road Atlanta

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
Reference class · the others' laps as a share of this one's at the same event, so years compare despite weather; + a class above to measure against it

Quickest here: T2 1:33.058 Raphael Assuncao, Super Tour Mar 2022 race · SMX 1:24.667 Tyler Gonzales, Super Tour Mar 2026 race · SM 1:41.798 Danny Steyn, Super Tour Mar 2021 qualifying

1:251:301:351:401:4528 rule changes between Super Tour Mar 2021 and Super Tour Mar 202228 ▾17 rule changes between Super Tour Mar 2022 and Super Tour Mar 202317 ▾29 rule changes between Super Tour Mar 2023 and Super Tour Mar 202429 ▾42 rule changes between Super Tour Mar 2024 and Super Tour Mar 202542 ▾34 rule changes between Super Tour Mar 2025 and Super Tour Mar 202634 ▾T2 race best at Super Tour Mar 2021: 1:34.689 (Tim Kezman)T2 race best at Super Tour Mar 2022: 1:33.058 (Raphael Assuncao)T2 race best at Super Tour Mar 2023: 1:35.906 (James Keown)T2 race best at Super Tour Mar 2024: 1:36.782 (Michael Kamalian)T2 race best at Super Tour Mar 2025: 1:34.704 (Raphael Assuncao)T2 race best at Super Tour Mar 2026: 1:34.508 (William Bolt)T2 qualifying best at Super Tour Mar 2021: 1:34.790 (Tim Kezman)T2 qualifying best at Super Tour Mar 2022: 1:35.127 (Raphael Assuncao)T2 qualifying best at Super Tour Mar 2023: 1:36.511 (James Keown)T2 qualifying best at Super Tour Mar 2024: 1:36.675 (Michael Kamalian)T2 qualifying best at Super Tour Mar 2025: 1:33.885 (Raphael Assuncao)T2 qualifying best at Super Tour Mar 2026: 1:37.184 (Raphael Assuncao)SMX race best at Super Tour Mar 2024: 1:39.924 (Will Robusto)SMX race best at Super Tour Mar 2025: 1:38.765 (Skyler Cottrell)SMX race best at Super Tour Mar 2026: 1:24.667 (Tyler Gonzales)SMX qualifying best at Super Tour Mar 2024: 1:38.964 (Michael Tinis)SMX qualifying best at Super Tour Mar 2025: 1:38.662 (Camden Gruber)SMX qualifying best at Super Tour Mar 2026: 1:38.517 (Jarrett Jones)SM race best at Super Tour Mar 2021: 1:42.564 (Preston Pardus)SM race best at Super Tour Mar 2022: 1:41.864 (Travis Wiley)SM race best at Super Tour Mar 2023: 1:42.553 (Charles Mactutus)SM race best at Super Tour Mar 2024: 1:42.995 (Charles Mactutus)SM race best at Super Tour Mar 2025: 1:42.625 (Sean Noonan)SM race best at Super Tour Mar 2026: 1:42.611 (Charles Mactutus)SM qualifying best at Super Tour Mar 2021: 1:41.798 (Danny Steyn)SM qualifying best at Super Tour Mar 2022: 1:42.814 (Connor Zilisch)SM qualifying best at Super Tour Mar 2023: 1:42.619 (Charles Mactutus)SM qualifying best at Super Tour Mar 2024: 1:42.620 (Danny Steyn)SM qualifying best at Super Tour Mar 2025: 1:42.848 (Sean Noonan)SM qualifying best at Super Tour Mar 2026: 1:42.324 (Skyler Cottrell)Super Tour Mar 20212021Super Tour Mar 20222022Super Tour Mar 20232023Super Tour Mar 20242024Super Tour Mar 20252025Super Tour Mar 20262026
T2SMXSMFBsolid race · dashed qualifying · slower is lower
88%90%92%94%96%98%100%102%104%106%108%110%28 rule changes between Super Tour Mar 2021 and Super Tour Mar 202228 ▾17 rule changes between Super Tour Mar 2022 and Super Tour Mar 202317 ▾29 rule changes between Super Tour Mar 2023 and Super Tour Mar 202429 ▾42 rule changes between Super Tour Mar 2024 and Super Tour Mar 202542 ▾34 rule changes between Super Tour Mar 2025 and Super Tour Mar 202634 ▾T2 race best at Super Tour Mar 2021: 100.0% of T2's (Tim Kezman)T2 race best at Super Tour Mar 2022: 100.0% of T2's (Raphael Assuncao)T2 race best at Super Tour Mar 2023: 100.0% of T2's (James Keown)T2 race best at Super Tour Mar 2024: 100.0% of T2's (Michael Kamalian)T2 race best at Super Tour Mar 2025: 100.0% of T2's (Raphael Assuncao)T2 race best at Super Tour Mar 2026: 100.0% of T2's (William Bolt)T2 qualifying best at Super Tour Mar 2021: 100.0% of T2's (Tim Kezman)T2 qualifying best at Super Tour Mar 2022: 100.0% of T2's (Raphael Assuncao)T2 qualifying best at Super Tour Mar 2023: 100.0% of T2's (James Keown)T2 qualifying best at Super Tour Mar 2024: 100.0% of T2's (Michael Kamalian)T2 qualifying best at Super Tour Mar 2025: 100.0% of T2's (Raphael Assuncao)T2 qualifying best at Super Tour Mar 2026: 100.0% of T2's (Raphael Assuncao)SMX race best at Super Tour Mar 2024: 103.2% of T2's (Will Robusto)SMX race best at Super Tour Mar 2025: 104.3% of T2's (Skyler Cottrell)SMX race best at Super Tour Mar 2026: 89.6% of T2's (Tyler Gonzales)SMX qualifying best at Super Tour Mar 2024: 102.4% of T2's (Michael Tinis)SMX qualifying best at Super Tour Mar 2025: 105.1% of T2's (Camden Gruber)SMX qualifying best at Super Tour Mar 2026: 101.4% of T2's (Jarrett Jones)SM race best at Super Tour Mar 2021: 108.3% of T2's (Preston Pardus)SM race best at Super Tour Mar 2022: 109.5% of T2's (Travis Wiley)SM race best at Super Tour Mar 2023: 106.9% of T2's (Charles Mactutus)SM race best at Super Tour Mar 2024: 106.4% of T2's (Charles Mactutus)SM race best at Super Tour Mar 2025: 108.4% of T2's (Sean Noonan)SM race best at Super Tour Mar 2026: 108.6% of T2's (Charles Mactutus)SM qualifying best at Super Tour Mar 2021: 107.4% of T2's (Danny Steyn)SM qualifying best at Super Tour Mar 2022: 108.1% of T2's (Connor Zilisch)SM qualifying best at Super Tour Mar 2023: 106.3% of T2's (Charles Mactutus)SM qualifying best at Super Tour Mar 2024: 106.1% of T2's (Danny Steyn)SM qualifying best at Super Tour Mar 2025: 109.5% of T2's (Sean Noonan)SM qualifying best at Super Tour Mar 2026: 105.3% of T2's (Skyler Cottrell)Super Tour Mar 20212021Super Tour Mar 20222022Super Tour Mar 20232023Super Tour Mar 20242024Super Tour Mar 20252025Super Tour Mar 20262026
T2SMXSMFBsolid race · dashed qualifying · each class's best lap as a share of T2's at the same event (the reference class, changeable above); 100% is level, higher is quicker
EventT2SMXSMFB
Qual bestRace bestTrapQual bestRace bestTrapvs T2% of T2Qual bestRace bestTrapvs T2% of T2Qual bestRace bestTrapvs T2% of T2
Super Tour Mar 2026 ST26MAR062026-03-061:37.184Raphael Assuncao · fastest of 5 · top 5 within 15.7s+3.299s (+3.51%)1:34.508William Bolt · fastest of 5 · top 5 within 15.7s-0.196s (-0.21%)142.3Raphael Assuncao+4.0 mph (+2.9%)1:38.517Jarrett Jones · fastest of 20 · top 5 within 0.7s-0.145s (-0.15%)1:24.667Tyler Gonzales · fastest of 21 · top 5 within 15.4s-14.098s (-14.27%)120.7Elivan Goulart+3.7 mph (+3.2%)-9.841squal +1.333s89.6%qual 101.4%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%)+8.103squal +5.140s108.6%qual 105.3%
34 rule changes (T2: 27, SMX: 4, SM: 3)6 weight · 5 induction · 5 tyres & wheels · 4 cars added · 3 suspension & brakes · 1 aero · 3 wording · 7 othershowhide
  • T2 BMW 240i Permitted Tune #39861other
  • T2 Request to Add 2014-2017 435i to T2 #38991cars added
  • T2 Consideration for Nissan Z & NISMO Z to Touring 2 Class #39296cars added
  • T2 Allow Alt Bushing Material in Toe Links #39607suspension & brakes
  • T2 Request for Classification of MG6 TCR in T2-TCR Class #39702cars added
  • T2 Alternate Placement of Fuse Panel and Electronics Request #39370other
  • T2 Rebalance Blackwing Cadillac T2 for 2026 #39426weight -50 lbs
  • T2 C6 LS2 Corvette Parity Request #39472induction
  • T2 T2 Tire Sizing #39490weight -25 lbs
  • T2 Rear Spoiler for Mustang GT S550 (15-23) #39499aero
  • T2 Clarify T4 Brake Rotor Allowance #39503suspension & brakes
  • T2 Help the 2011-2014 s197Mustang GT and Boss302 Less Restriction #38523induction
  • T2 Improving Competitiveness of Gen 5 Camaro SS #39021weight -50 lbs
  • T2 Adjust T2 Darkhorse R #39346weight
  • T2 ND Gearset Request for T4 #39166other
  • T2 ND Spec Lines Wrong PT#'s #39170weight
  • T2 Touring 2 Post-Runoffs BOP Adjustments and Changes #39274induction -50 lbs
  • T2 Adjust rev limit on Spec Corvette in T2 #39282other
  • T2 Incorrect Touring Heading #38451wording
  • T2 Clarifications needed to BMW M2 CS cup line #38536tyres & wheels
  • T2 Fix brake allowance supersessions. #38554suspension & brakes
  • T2 C5 Corvette correction #38782induction
  • SM SMX Data Submission - Penalties #38248other
  • SM Committee) SMX Penaly Clarification updated language #38337wording
  • SMX SMX Data Submission - Penalties #38248other
  • SMX Committee) SMX Penaly Clarification updated language #38337wording
  • SM Clarify Tire Marking Regs #38005tyres & wheels
  • SMX Clarify Tire Marking Regs #38004tyres & wheels
  • SMX SMX Data Submission Timeframe #38039other
  • T2 C6 T-2 Corvette 6 Liter Engine Restrictor #37490induction
  • T2 370Z Mid link Replacement for True Coil Overs and OEM Wheel Size #38014tyres & wheels
  • T2 T2 Cadillac tire #38210tyres & wheels
  • T2 Please class the Darkhorse R in T2 #37295cars added
  • T2 T2 350Z Spec Line Cleanup #37603weight
Super Tour Mar 2025 ST25MAR072025-03-071:33.885Raphael Assuncao · fastest of 4 · top 4 within 13.9s-2.790s (-2.89%)1:34.704Raphael Assuncao · fastest of 4 · top 4 within 4.9s-2.078s (-2.15%)138.3Raphael Assuncao+9.4 mph (+7.3%)1:38.662Camden Gruber · fastest of 30 · top 5 within 0.2s-0.302s (-0.31%)1:38.765Skyler Cottrell · fastest of 30 · top 5 within 0.5s-1.159s (-1.16%)117.0Cam Ebben+1.0 mph (+0.9%)+4.061squal +4.777s104.3%qual 105.1%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%)+7.921squal +8.963s108.4%qual 109.5%
42 rule changes (T2: 32, SMX: 5, SM: 5)7 suspension & brakes · 5 engine · 5 induction · 5 weight · 4 cars added · 3 tyres & wheels · 2 removed · 2 wording · 9 othershowhide
  • T2 T2 BOP #37312induction
  • T2 Mustang Update backdate #37275removed
  • T2 BOP Adjustment for 2016 - Camaro SS/1LE #37434weight +100 lbs
  • T2 BMW M235iR TCS CHANGE REQUEST #37470other
  • T2 Request to Classify Club Spec in Appropriate Touring Classes #37523cars added
  • T2 Remove spec lines that have expired #37269induction
  • T2 BoP for the Various Mustangs #37185weight -50 lbs
  • T2 Spec Corvette Line Clarification. #37441weight
  • SM E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • SMX E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • T2 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft #36484suspension & brakes
  • T2 Request Less Restriction for Ls-3 Engined C6 Corvette #36810induction
  • T2 Fuel Emissions Components #37076engine
  • T2 fix brake wording #37129suspension & brakes
  • T2 Evaporative emissions systems #37130engine
  • T2 Move Spec Boxster to T4 #37158cars added
  • T2 Corvette Wheels #37169tyres & wheels
  • T2 BMW 320i Spec Line #37204other
  • T2 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual #37224cars added
  • T2 Please Consider Allowing Update to the C5 Corvette #37298induction
  • T2 Major error in lane, but nobody ran it. #37302removed
  • T2 Spec Corvette Change for T2 #37127tyres & wheels
  • SM SMX Camera Rule Correction #36496wording
  • SM Committee) AIM ECU Protocol #36556engine
  • SM Committee) OE versus OEM Definitons #36608other
  • SM Committee) Shifter Bushing #36611suspension & brakes
  • SMX SMX Camera Rule Correction #36496wording
  • SMX Committee) AIM ECU Protocol #36556engine
  • SMX Committee) OE versus OEM Definitons #36608other
  • SMX Committee) Shifter Bushing #36611suspension & brakes
  • T2 Errors #36214induction -75 lbs
  • T2 Subaru Appeal #36258other
  • T2 S550 Brakes #36571suspension & brakes
  • T2 Mustang T2/T3 #35877other
  • T2 S550 Brakes #35926suspension & brakes
  • T2 T2-T4 Driveshaft Mistake...? #36050weight
  • T2 request for allowance of 6 piston calipers for T2 C5 corvettes #36126other
  • T2 B8/8.5 Audi S4 T3 and T2 #36195cars added
  • T2 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj. #35761engine
  • T2 Competition Adjustment Request/Wheel Size of E46 #35895tyres & wheels
  • T2 Driveshafts #35916weight
  • T2 Brake Request for 2009 Porsche Cayman #35723suspension & brakes
Super Tour Mar 2024 ST24MAR082024-03-081:36.675Michael Kamalian · fastest of 2+0.164s (+0.17%)1:36.782Michael Kamalian · only car+0.876s (+0.91%)129.0Michael Kamalian-12.6 mph (-8.9%)1:38.964Michael Tinis · fastest of 33 · top 5 within 0.5s1:39.924Will Robusto · fastest of 33 · top 5 within 1.1s116.0Jack Murchison+3.142squal +2.289s103.2%qual 102.4%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%)+6.213squal +5.945s106.4%qual 106.1%
29 rule changes (T2: 29)10 weight · 7 suspension & brakes · 3 induction · 2 tyres & wheels · 1 engine · 2 wording · 4 othershowhide
  • T2 Reorganize Spec Lines #35375induction
  • T2 370Z Brake Rotor Size Correction #35487suspension & brakes
  • T2 Letter #35154 2018+ Mustang GT Expansion #35488suspension & brakes
  • T2 2015+ Mustang Sway Bar and A-Arm Request #35154suspension & brakes
  • T2 Brake Kits #35245suspension & brakes
  • T2 Runoffs wording on Caddy in T2 #35377wording
  • T2 More Car Lightening Stuff #35319weight
  • T2 Inclusion of B-C spec cars in T4 #35374other
  • T2 T2-T4 Set expiration dates on spec lines #35378induction
  • T2 Reply to letter #35161 and #31661 #35384weight +75 lbs
  • T2 Rebalance Blackwing Cadillac T2 #35079tyres & wheels
  • T2 M2 CS RACING #35130weight -50 lbs
  • T2 Spec Corvette in T2 #35139weight -175 lbs
  • T2 T2 Viper BoP #35155tyres & wheels
  • T2 BOP Adjustment for 5.0L Mustangs #35156weight +75 lbs
  • T2 Take at Look at T-2 BOP #35161weight -50 lbs
  • T2 C5 Corvette Spec Line Oversight #35169weight
  • T2 Requested Update of Model Years of 370Z #35231other
  • T2 M2 CS RACING #35122other
  • T2 Corvette LS2 Restrictor Plate Adjustment #34456induction
  • T2 Blacking Cadillac Fuel Capacity #34624engine
  • T2 Rules Clarification for Mazda RX8 Spec Line #34395weight
  • T2 rule book corrections #34437wording
  • T2 Ride Height Correction for the T3 Solstice. #34615suspension & brakes
  • T2 370Z Obsolete Parts & NISMO Alternatives to SPL Parts #34297weight
  • T2 2009 Porsche Cayman Classing Request #34147other
  • T2 C5 Z06 Straight Line Speed #33575weight
  • T2 Allowance of any nonmetallic bushing material in T2 #33833suspension & brakes
  • T2 Allow Adjustable stabilizer bar links #33861suspension & brakes
Super Tour Mar 2023 ST23MAR102023-03-101:36.511James Keown · fastest of 6 · top 5 within 2.1s+1.384s (+1.45%)1:35.906James Keown · fastest of 5 · top 5 within 2.1s+2.848s (+3.06%)141.5Scotty B White-5.3 mph (-3.6%)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%)+6.647squal +6.108s106.9%qual 106.3%
17 rule changes (T2: 15, SM: 2)3 suspension & brakes · 3 tyres & wheels · 3 weight · 2 cars added · 1 engine · 5 othershowhide
  • T2 Honda Civic Type R Tire Size Increase #33672tyres & wheels
  • T2 C5 Corvette Swaybars #33269other
  • T2 Mustang OEM Grill Request #33333other
  • SM BOP for NB1 and NB2 #32309weight
  • T2 BMW M235iR/M240iR Aftermarket 2WNR Shocks Allowed - Touring 2 #33464suspension & brakes -50 lbs
  • T2 Touring (T2-T5) Category #33617tyres & wheels
  • T2 ENO 9.1.9.2.D.1.e.1.a. #33651other
  • T2 Heavy Cars #33345weight +125 lbs
  • T2 BMW M235iR/M240iR Min Weight Clarification #32430weight
  • T2 Follow up to Letter 30888 #32477other
  • T2 Request Alternate Front & Rear Strut/Shock Top Hats #32452suspension & brakes
  • T2 Request BoP E92 torque #32456other
  • T2 Classify Cadillac Blackwing #32535cars added
  • SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
  • T2 Request to Allow the Use of Aftermarket ECU's in Touring #31067engine
  • T2 BMW M2 CS Cup 2020- Exhaust #32243tyres & wheels
  • T2 RequestT2 classification- 2022 Cadillac CT4-V Blackwing #32263cars added
Super Tour Mar 2022 ST22MAR122022-03-121:35.127Raphael Assuncao · fastest of 4 · top 4 within 3.3s+0.337s (+0.36%)1:33.058Raphael Assuncao · fastest of 4 · top 4 within 2.6s-1.631s (-1.72%)146.8Raphael Assuncao+3.5 mph (+2.5%)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%)+8.806squal +7.687s109.5%qual 108.1%
28 rule changes (T2: 27, SM: 1)7 suspension & brakes · 6 weight · 4 cars added · 1 induction · 2 wording · 8 othershowhide
  • T2 Reply to letter #31486/29879 T2-T4 Grill openings #31935suspension & brakes
  • T2 C6 Restrictor Help #31995induction
  • T2 BMW Z4M Adjustment #31885weight -50 lbs
  • T2 Touring 2 BOP adjustments for 2022 #31480weight -50 lbs
  • T2 Reply to letter 29879 T2-T4 Grill Openings #31486suspension & brakes
  • T2 Request to clarify radiator hoses #31682wording
  • T2 Clarify Permitted/Allowed #31743suspension & brakes
  • T2 SMG #31837other
  • T2 Typo for BMW M2 CS Cup 2020 #31173suspension & brakes
  • T2 Request to Classify 2014 VW Jetta 1.8t TSI #30436cars added
  • T2 Request new car 2017 BMW M2 #30486cars added
  • T2 Request to Classify Porsche 997.2 GTS in T2 (body not = to C2S) #30686cars added
  • T2 BMW M2 CS Power Stick Part Number #31087wording
  • T2 997.1 EO #30933other
  • T2 Request #30406weight
  • T2 Civic Type R Brake Rotors #29817suspension & brakes
  • T2 Mustang S550 Parity in T2 #29925other
  • T2 Request BOP on BMW Z4 T2 car #30597weight +50 lbs
  • T2 E92 #30639weight -50 lbs
  • T2 C5/6 Corvette in T1, T1-LP and T2 Dry Sump Standardization #29046other
  • T2 Request for Chevrolet Camaro 1LE (2016-) Auto Trans #29067other
  • T2 Request E46 M3 Minimum Competition Weight #29429weight -100 lbs
  • T2 Request to add 2015 to Chevrolet Camaro SS/1LE 2010-2014 #29736other
  • SM Updates - Obsolete Parts & BOP Parts #30438other
  • T2 Request consistency review in GCR #30263other
  • T2 Class Spec Corvette in T2? #30297cars added
  • T2 E92 BMW Spring Rate Request #30391suspension & brakes
  • T2 Please correct recent T2 Spec Line #30401suspension & brakes
Super Tour Mar 2021 ST21MAR192021-03-191:34.790Tim Kezman · fastest of 10 · top 5 within 2.1s1:34.689Tim Kezman · fastest of 10 · top 5 within 0.9s143.3Aaron Kaplan1:41.798Danny Steyn · fastest of 68 · top 5 within 0.7s1:42.564Preston Pardus · fastest of 67 · top 5 within 0.2s113.6Marc Cefalo+7.875squal +7.008s108.3%qual 107.4%
74 earlier rule changes on record, in force before Super Tour Mar 2021 (from 2019)18 weight · 15 suspension & brakes · 9 cars added · 6 tyres & wheels · 4 induction · 3 engine · 1 aero · 7 wording · 11 othershowhide
  • T2 Request BMW M2CS door glass removal #30254other
  • T2 Request Addition of BMW M240iR #29503weight
  • T2 2021 Toyota Supra #29567cars added
  • T2 Request Cold Air Intake for Honda Civic Type R #29942induction
  • T2 Adjust T2 spec line that was missed in T2 BOP #30055weight -50 lbs
  • T2 Fix T2 Mustang spec line #30106other
  • T2 Z4 Wheel Size #30113tyres & wheels
  • T2 Clarify T2 Spec lines #30194tyres & wheels
  • T2 Request to Classify BMW M2 CS #29523cars added
  • T2 350Z Rear Caliper Replacement #29710other
  • T2 Request Mustang 8.8” rear axle replacement #29860other
  • T2 Cap year range on all 86s #29908other
  • T2 Request to Reevaluate T2 Spec Line for E92 M3 #28266weight -50 lbs
  • T2 Request for Parity Among Vehicles Including S550 Mustang #29486weight -75 lbs
  • T2 Alfa Romeo 4C Launch Edition #29531other
  • SM Radiator E&O Clarifications #29294engine
  • T2 Request 2018+ mustang swaybar update #28659suspension & brakes
  • T2 Request to Clarify New 2-piece Brake Rotor Rule #29106suspension & brakes
  • T2 please consider BoP for the following cars in T2 #29266weight -50 lbs
  • T2 Request clarification on most recent approval by the Board #29284suspension & brakes
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • T2 Request to correct GCR for 2018+ FORD Mustang GT & Ecoboost #28803wording
  • T2 Request to Add a Vehicle to the Roster (contd.) #27698other
  • T2 Request brake upgrade and electric power steering pump #28946suspension & brakes
  • T2 Request to Classify 2004 Mercedes Benz 320 CLK #27663cars added
  • T2 Consider coil spring conversion Corvette in T2 #28824suspension & brakes
  • T2 Please Add the Following BBK to Allowed List for E92 M3 #28421wording
  • T2 C5 Weight Adjustment #28433weight -50 lbs
  • T2 Z3M Roadster Weight #28437weight
  • T2 Limit Changes to the 997.2 Porsche #28242aero
  • T2 Correct T2 Mustang Transmission #28732wording
  • T2 Request to Readjust the T2 Porsches #27746induction
  • T2 Please Switch the Solstice GXP as Specified in T2, to T3 #27413weight -50 lbs
  • T2 Request for Two Piece Stop Tech Brake Rotors #27582suspension & brakes
  • T2 Request to Classify all Mazda RX8 Models in T3/T4 #27606cars added
  • T2 Request for Alternative Brake Kit on Nissan 370Z #27912suspension & brakes
  • T2 2015- Current Ecoboost Mustang #27971weight -100 lbs
  • T2 T2 Mustang #28022tyres & wheels
  • T2 Clarification of On-Board Fire System for T2 #27183wording
  • T2 Mustang Ecoboost and GT Transmission #27439other
  • T2 Request for Dailey Engineering Dry Sump on 2010 Camaro SS #27514engine
  • T2 Request for Half Shafts - 2014 Camaro SS 1LE #27584induction
  • T2 Request for Parity Among Vehicles #27665weight -50 lbs
  • T2 Request for 2016-2020 Camaro SS Help #27776weight -50 lbs
  • T2 Request for Competitive Adjustments to Honda Civic Type R #27839weight -50 lbs
  • T2 T4 RX8 Classification Error #27902wording
  • T2 Request to add Toyota 86 GT to Spec Line #27910other
  • T2 Request spare tire/wheel clarification #27012tyres & wheels
  • T2 Request to change Cadillac CTS-V years from 06-07 to 04-07 #26842cars added
  • T2 Request to allow Hotchkiss front / rear sway bars on T2 CTS-V #26845suspension & brakes
  • T2 Consider T2 06-07 Cadillac CTS-V BoP #27022induction
  • T2 Correct T2 Mustang tire size #27024tyres & wheels
  • T2 2018+ Audi TT RS Suspension Allowances #26631suspension & brakes
  • T2 Request BOP adjustment for 2018 Honda Civic Type R-TIR removal #26882weight +150 lbs
  • T2 Request for Removal of Rear Anti-roll Bar in T2 Mustang GT #26533suspension & brakes
  • SM Request to allow aftermarket fuel filters. #26370wording
  • T2 Request Mustang GT Limited Prep 2018 Classification #24431cars added
  • T2 Request to Classify 2018 Audi TT RS #25961cars added
  • T2 Request for Adjustments on 2017+ Civic Type R #25969suspension & brakes
  • T2 Correct Mazda MX-5 Hard Top Notes #26137weight
  • T2 Consider opening class rules to allow any thermostat #26187wording
  • T2 Ford Mustang Boss 302 (12-13) - correct weight #26287weight -50 lbs
  • T2 Request camber correction 005-2013 corvette C6 #26288suspension & brakes
  • T2 Request 98-02 Firebird 98-02 Camaro reloacte rear spring #26291suspension & brakes
  • T2 Cap 2016 Mazda Miata year at 2018 #26388other
  • T2 Class Ford Mustang GT 2018+ (reference letter 24431) #26400cars added
  • SM Request 99-00 replacement Wire harnesses #25602engine
  • SM Organize and Clarify 9.1.7.C.1.o. #25913weight
  • SM Strike Tire Tread Language #26123tyres & wheels
  • T2 Errors, Omissions, and Updates (Various) #22414weight
  • T2 Request to classify 2015 Cayman GTS 3.4L in T2 #25335cars added
  • T2 Request for 2017-2018 Honda Civic Type R - 4 BOP Grill #25513other
  • T2 Add Clarification to Spec Car Classifications Vehicle Spec #25774weight
  • T2 Clarify Subframe Bushings Permitted for T2-T4 #25800suspension & brakes

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 T2" is the class's best as a share of T2'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 T2'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.