Unlock it next month.
Microsoft will release free downloadable content for Kinect Joy Ride next month.
The Chevrolet Car Pack, due to launch on 4th January, includes a Chevrolet Camaro, Corvette and Cruze.
On 4th January you’ll be able to unlock the Chevrolet cars by clicking on the Chevrolet ad in the Xbox Live Marketplace or by visiting Xbox.com.