The Trax is the most versatile of the Chevy Triplets. Under normal driving conditions, the work of the prior 16-inch tires with a 1.0-liter gas engine in the implementation of power to the road, but when it gets a little smooth trigger, an electronic locking differential. The rear diff is bound by a battery pack, which an engine that powers the rear wheels turn, motivated. In some ways, the Trax is a hybrid four-wheel-driver ... sort of. Trax Other features include a fold-flat rear seat, roof rails and an exterior-mounted spare tire. Exterior designers of the Trax, Sangyeon Cho, suggests that this little four door, brings "a rational combination of SUV design, function, performance and value for consumers."