well, for one, the Koups ass end is quite light from my test-driving experience. And once you have a set of snow tires, any weight in the back to help add traction is good. My FWD sedan with snowtires sticks to the road like glue with the weight of my audio in the back. (Most of my weight is right at or just in front of the rear axelWhy would you put weight in the trunk of a FWD car![]()