The 2000 GM Precept

The Precept concept demonstrates an ultra-high-efficiency, environmentally friendly architecture from GM.

The parallel-hybrid Precept concept employs the most aerodynamically efficient design known,

with a drag co-efficient of 0.163. Its four-wheel drive, dual-axle configuration features a 35 kilowatt

three-phase electric motor driving the front wheels, and a lean-burn compression-ignition,

direct-injection heat engine driving the rear wheels