Here is the shop that will be building the cars;
http://www.timemachinesinc.com/finishedrestorations.htm
Go down to custom restorations. Click on the yellow cuda (the six shooter). I would imagine that this is the idea behind the Motion build as it says its viper based. Also look at the camaro build as the reinforced tunnel idea is incorporated there. So it must be a few ideas from these builds.