Of the current generation Mustangs there are three basic cars: V6 pushrod, V8 SOHC, V8 DOHC. For 2005 there will be a V6 SOHC. These engine types align with standard body Mustang, deluxe Mustang (GT), and performance Mustang (Cobra). Aftermarket, with Ford blessing, also makes Steeda Mustang...