Question 1

How does fuel weight affect cornering speed?

Accepted Answer

Fuel weight increases total vehicle mass, reducing the power-to-weight ratio and changing the effective grip coefficient. A full tank of gasoline (0.745 kg/L) in a car like the Ferrari 488 GTB adds about 58 kg. This extra mass increases tire loading, causing grip to degrade non-linearly due to tire load sensitivity. The effect is more pronounced in cars with high fuel capacity relative to dry weight.

Question 2

What is the 0-100 km/h time for a Bugatti Chiron?

Accepted Answer

The Bugatti Chiron accelerates from 0 to 100 km/h in 2.4 seconds. It is powered by an 8.0L W16 Quad-Turbo engine producing 1,500 hp and 1,600 Nm of torque, with AWD through a 7-speed DCT. At a dry weight of 1,995 kg, this gives a power-to-weight ratio of approximately 607 hp per ton at full fuel.

Question 3

How do brake pad compounds affect stopping distance?

Accepted Answer

Brake pad compounds directly affect friction coefficient. Carbon-ceramic pads maintain friction above 0.45 even past 600C, while organic pads fade significantly above 300C. A Porsche 911 GT3 with 1.19 mu grip can stop from 200 km/h in approximately 118 meters under ideal conditions, but brake fade can increase this by 15-25%.

Question 4

How much does a full tank of fuel weigh in a sports car?

Accepted Answer

A full tank of gasoline weighs 35-110 kg depending on the car. Gasoline density is 0.745 kg/L. Examples: Bugatti Chiron (100L) = 74.5 kg, Ferrari 488 GTB (78L) = 58.1 kg, Porsche 911 GT3 (64L) = 47.7 kg, Honda Civic Type R (47L) = 35.0 kg.

Question 5

What is the braking distance from 200 km/h for a supercar?

Accepted Answer

Braking distance from 200 km/h varies by grip coefficient. Using d = v^2 / (2 * mu * g): McLaren 720S (1.22 mu) stops in ~122m, Porsche 911 GT3 (1.19 mu) in ~125m, BMW M4 Competition (1.08 mu) in ~138m. These assume dry conditions and cold brakes.

Question 6

What is tire load sensitivity?

Accepted Answer

Tire load sensitivity means that as vertical load on a tire increases, its friction coefficient decreases. Grip increases in absolute terms, but not proportionally. This is why weight transfer in corners causes net grip loss. The model: mu_effective = mu_base * (reference_load / actual_load) ^ sensitivity, where sensitivity ranges from 0.08 (high-performance) to 0.12 (standard road tires).

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Bugatti Chiron

Featured Cars

Bugatti Chiron

Koenigsegg Jesko

Lamborghini Huracan EVO

McLaren 720S

Ferrari SF90 Stradale

Porsche 911 GT3 (992)

Interactive Lab

Fuel Physics

Acceleration Lab

Brake Zone

Aero Lab

Tire Science

Weight Distribution

Real Circuits

Nurburgring Nordschleife

Spa-Francorchamps

Suzuka

Built for people who love cars.

The physics of
cars. In real time.