Cadillac Cien Concept

The Cadillac Cien was a concept car created by Cadillac and unveiled at the 2002 Detroit Auto Show. The Cadillac Cien had a 7.5 L V12 Northstar XV12 engine, which produced 750 hp. This experimental engine featured direct injection and Displacement on Demand, which allowed the engine to run on only six cylinders under light load. The Cien was designed at General Motors' Advanced Design Studio in