16. Renault Clio Sport V6
One of the craziest V6 installations ever performed on a production car is the Clio Sport V6. It’s basically a rally car for the street with a V6 engine mounted behind the driver in the interior of a small car.

The 3.0-liter V6 delivers 255 HP and sends power to the rear wheels. The driver sits just in front of the engine. Magazine testers described the whole package “ludicrous”.