Having have many performance German vehicles in the past (BMW E46 M3 was my last), there is no substitute for displacement. The torque on takeoff always puts a smile on my face. I love the NPP exhaust which I recommend to anyone as a must have. This car is a tremendous deal for the price that will spank many cars costing 2-3 times more. Also, to increase the HP to over 500 is relatively cheap compared to German or Italian cars.
Power, looks, overall performance, reliability, American made!
Increase the base engine to 500 hp. The front skirt below the air dam always scrapes on my driveway. Make it shorter in height.