30 concept cars that never hit the mainstream

Audi Sport Quattro Laserlight

In 2014 Audi released this concept vehicle with lasers for headlights, but it only appears as a demonstration car.

Cadillac Sixteen

This 2003 concept vehicle was the winner of an in-house competition at General Motors. The Sixteen had V-16 engine that was a throwback to the brand’s make from the 1930s. Though this beauty never made it to the production floor, it inspired the Cadillac CTS.