GM is contributing to the green contagion by designing 3 more concept mini cars to be put into production in the “relatively near future”.

Trying to make an impact in the small car market currently dominated by Japanese products, GM has created what they call The Triplets:Beat, Groove and Trax.

The “triplets,” as Lutz called them, include the Beat, a front-wheel drive three-door hatchback powered by a 1.2-liter turbocharged gasoline engine; the Groove, a retro looking front-wheel drive car with a 1-liter diesel engine; and the Trax an “urban crossover” with an all-wheel-drive system and a 1-liter gas engine.
(Source)

There is no reference to any special auto warranty or other incentives, but if you would like to offer your 2 cents on “The Triplets” before they hit production, you can render your opinion on the General Motors website.