Class: Concept/Prototype
Body Style: 2-door roadster
Engine: 7.5 Liter V12 (Northstar XV12)

The '''Cadillac Cien''' was a [WIKIPEDIA]concept car[/WIKIPEDIA] created by [WIKIPEDIA]Cadillac[/WIKIPEDIA] and unveiled at the 2002 [WIKIPEDIA]Detroit Auto Show[/WIKIPEDIA] to celebrate Cadillac's 100th anniversary ("cien" is Spanish for one hundred, which compares the [WIKIPEDIA]Buick Centieme[/WIKIPEDIA]). It was designed by Simon Cox.

The Cadillac Cien had a 7.5 L V12 Northstar XV12 engine, which produced 750 hp (559 kW) and 450 lb·ft (610 N·m) of torque. This experimental engine featured [WIKIPEDIA]Gasoline direct injection[/WIKIPEDIA] and [WIKIPEDIA]Displacement on Demand[/WIKIPEDIA], which allowed the engine to run on only six or fewer cylinders under light load. The Cien was designed at General Motors' Advanced Design Studio in England and built as a fully-working road-going vehicle with the help of the UK-based engineering and motorsport company Prodrive. The Cien's low, sleek style was created out of a block of aluminum and its design was inspired by the [WIKIPEDIA]F-22 Raptor[/WIKIPEDIA].

The Cadillac Cien has a capable top speed of 412 km/h (256 mph) and a 0–100 km/h time of 3.5 seconds. If the Cadillac Cien was ever put into production it would sell for roughly $295,000, which would be in the record books for cheapest 400 km/h (249 mph) car ever put into production.