From Chevy Wiki
The Chevrolet Triax was a Concept car created by General Motors under the Chevrolet Marque. It was shown at the 2000 North American International Auto Show. The Triax is very odd since it has three different propulsion systems.
How The Triax Works
The Triax uses a V3 engine with normal aspiration and induction the displaces about 0.66 L. It uses an AWD automatic transmission with a total of four gears. The Triax is, like mentioned above, very odd because it has three different propulsion systems. It lets the driver switch between four-wheel-drive electric, four-wheel-drive hybrid electric or two-wheel-drive internal combustion. Other things about the Triax are not well known by the public.