 Cars.com | '08 Mustang Bullitt kicks your giddyup into gear USA Today - Evidence: 2008 Dodge Challenger SRT8 with a 425-horsepower Hemi V-8; 2009 Pontiac G-8 GXP, 402-hp V-8; 2009 Corvette, 620-hp supercharged V-8. ... Last hurrah for the brawny American car? 2010 Ford Mustang Coupe - Spied Dodge Expects V-6 to Power Almost Half of Challengers |