A 4 cylinder has no business in a muscle car and a V-6 is just starting to be accepted. But for all purposes, I think the 5.7 fits well and gets mileage that is acceptable to most. With the MDS in automatic its a good choice for the muscle and gas compromise. If its just the looks and feel... then the V-6 is your car. But I'm torn between the 5.7 and 6.1. I need the 6.4 to put me over the top