Car Terms

An instrument which measures the working speed of an engine, typically in revolutions per minute.

A semi-convertible body style with a removable roof section between the A and B pillars of the body.

The maximum speed that tires can safely carry a load for a sustained amount of time in ideal conditions, generally denoated by a letter added to the tire's size.

A twisting force that speaks to the engine's rotational force and measures how much of that twisting force is available when an engine exerts itself.

A traction control system, also known as ASR, is typically a secondary function of the electronic stability control on production motor vehicles, designed to prevent loss of traction of the driven road wheels.

A single mechanical device which combines the functions of an automobile's transmission, axle, and differential into one integrated assembly. It can be produced in both manual and automatic versions.

A vehicle that has been modified to resemble a more desirable or histor- ically significant machine.

Larger rear wheel wells have been installed to fit wider and often taller rear tires for drag-racing or Pro-Street cars.