I forgot to mention one more factor you may or may not care about...the Mustang uses regular unleaded gas and still gets 300 hp. That's pretty amazing when you think about it. Although I loved the performance my LT1 and LT4 Corvettes had and the LS1 Camaro SS had, they all used premium fuel. I like not having to pay the extra 20 cents per gallon when I fill my Mustang, especially since I still have plenty of performance out of unleaded.