Free tool · model estimate
Spend on what makes you faster.
Pick your car and try upgrades. See the estimated lap-time change, whether your brakes and engine will last a full session, and which parts buy durability instead of speed.
Performance planner · M2 F87 (incl. Competition)Model estimate
Tires
Brake pads
Brake fluid
Brake cooling
Brakes
Alignment
Suspension
Differential
Weight
Power
Cooling
Oil system
Aero
1:48.19stock 1:48.19−0.0%
Reference circuit (fictional, 3.5 km). Late lap includes brake fade and heat derating once the system runs out of margin.
Brake fade marginFades
Engine heat marginDerates
Oil starvation riskLow
Tire life (relative)100%
Sensitivity · each upgrade alone vs stock (late lap)
- R-compound tires−5.38%load ↑
- 200TW endurance tires−2.67%load ↑
- Street/track pads−0.90%durability ↑
- Race pads−0.90%durability ↑
- High-temp fluid−0.90%durability ↑
- Brake cooling ducts−0.90%durability ↑
- Big brake kit−0.88%durability ↑
- Track alignment−0.85%
- Coilovers + sway bars−0.71%
- Splitter + wing−0.69%
- Oil cooler + radiator−0.34%durability ↑
- Lighter wheels + seat−0.20%
- Limited-slip differential−0.11%load ↑
- Oil system (baffles / accumulator)±0
- Intake, exhaust, tune±0load ↑
Estimates from a simplified point-mass lap simulation of M2 F87 (incl. Competition) (3,451 lb, 365 hp) on a fictional circuit, with generic effects for each upgrade category. Good for comparing options on the same car, not for predicting your lap time. Real results depend on the driver, the exact parts, the track and the conditions. Durability starts lower on this car because of its known issues: heat.