I have often looked at the new muscle cars and wondered why some of the bolt on options doesn't include narrowed rear ends. Ok, lets look at the dodge challenger. Looks like a nice car, but looking from behind, the tires are 'way" to small. Now we can purchase superchargers ect...for more power, but wouldnt it be cool if the cars were designed with plenty of room in the wheel tubs to accept larger tires! Lets say a buyer could buy a narrowed rear end option from the factory? IDK,