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BoP Lab / Buttonwillow Raceway Park

FE vs F5 vs SRF vs GTX pace at Buttonwillow Raceway Park

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
ASB-SpecEPvsF5×FAFCFE×FE2FFFPFVFXGT1GT2vsGTX×HPPP2SMSMXvsSRF×SRF3STLSTUT1T2T3T4Show 12 inactive classes
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
Track configuration
EventFEF5SRFGTX
Qual bestRace bestTrapQual bestRace bestTrapvs FE% of FEQual bestRace bestTrapvs FE% of FEQual bestRace bestTrapvs FE% of FE
Super Tour Apr 2019 ST19APR262019-04-26
4 earlier rule changes on record, in force before Super Tour Apr 2019 (from 2019)1 tyres & wheels · 1 wording · 2 other · GT1 and GT2/3/Lite remove ride height ground clearance rules; cars may now touch ground when tires deflate. · FE Hoosier rain tyre part numbers updated: front 44195 W3, rear 44217 W3. · GTX FIA GT3: Audi R8 now 40 mm restrictor and 2900 lbs; BMW Z4 now 70 mm restrictor and 2800 lbs; Ferrari 488 now 35 mm restrictor, TIR, and 3025 lbs.showhide
  • GTX Request Ride Height Clarification #26600wordingfasterGT1 and GT2/3/Lite remove ride height ground clearance rules; cars may now touch ground when tires deflate.
  • FE Request to Update Hoosier Rain Tire Part Number for the FE cars #26235tyres & wheelstyres & wheelsFE Hoosier rain tyre part numbers updated: front 44195 W3, rear 44217 W3.
  • GTX Replace FIA references with SRO #26427other
  • GTX GTX Homologation table update #26034otherunclearGTX FIA GT3: Audi R8 now 40 mm restrictor and 2900 lbs; BMW Z4 now 70 mm restrictor and 2800 lbs; Ferrari 488 now 35 mm restrictor, TIR, and 3025 lbs.

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