General Motors' Chevrolet division unleashed three prototype models fitted with bits and pieces from its forthcoming Z-Spec line of accessories at the SEMA Show today. The cars chosen to showcase the new dress-up parts were the 2011 Cruze compact, the new Volt extended-range electric vehicle and the soon-to-be-launched Spark minicar.
The Detroit-based automaker has not yet released details on its Z-Spec concept models, but from what we can tell by looking at the photos, all three cars receive similar upgrades including unique alloy wheels wrapped in chunkier tires, exterior graphics, mild body modifications and numerous touches inside like the sports steering wheel and niftier materials and colors. Photo gallery after the jump.