What makes cars go: horsepower, torque, compression, gearing, fuel economy and braking
Engine power in kW from torque and rotational speed.
Horsepower from torque (lb-ft) and engine rpm.
Ratio of cylinder volume at bottom vs top of the stroke.
Total swept volume of all cylinders.
Ratio of driven to driving gear teeth.
Road speed from engine rpm, gearing and tyre diameter.
Litres of fuel used per 100 km travelled.
Distance in miles per gallon of fuel.
Distance to stop from speed v with friction μ.
Engine power divided by vehicle mass — the key to acceleration.
Air resistance a car must overcome, rising with speed squared.
Energy that brakes must dissipate to stop a moving car.
Turning effect of a force applied at radius r.
Electric-vehicle range from battery capacity and consumption.
Hours to charge a battery at a given power.
Distance covered in one wheel revolution.