Brent,I'm not sure if the short wheelbase of the AMX would be an advantage or disadvantage on a roadcourse, Thats where I would start. I would see which platform would perform the best for what I plan on using it for. There are aftermarket suspension kits and parts to make both cars perform,but the A body Mopar would have more parts and kits to choose from. The AMX as stated is limited to two passengers too.