i had 2 s197 (05+) gt's and the new mustangs suck for one reason in particular... The brake systems.. my last one was wrecked becuase the brakes gave out. They are way underpowered for the weight/size of the newer mustangs. Other than that, I loved mine and averaged 19-20mpg around the city. although on the other hand I love my turbo teg and the fact that people dont expect whats under the hood .. do what you feel will make you happier