
A supercar is any car that is custom-produced for ultra-high performance.
Most often, supercars are designed and built to break performance records. As an example, the SSC Ultimate Aero TT was designed with one purpose in mind: to set production car speed records.
A List of Widely Regarded Supercars
The SSC Ultimate Aero TT

The McLaren F1

Hennessey Viper Venom 1000

The Koenigsegg CCR

Dauer 962 LM

Melling Hellcat

Lotec Sirius

Saleen S7 Turbo

TVR Cerbera Speed 12

Ruf CTR-3

Ultima GTR

Bristol Fighter T

Porsche 997 Turbo

Supercars typically have three characteristics that set them apart from mass-produced cars.
First, even in production, a supercar’s engine is always unique and hand-crafted by a specialized engine builder.
Second, a supercar must be in the upper 99 percentile for some important performance metric like speed, acceleration, handling, etc.
Third, a supercar’s exterior must be designed for performance.