New and redesigned 2011 cars
The 2011 Mustang hasn't changed much on the outside, but it's changed big under the hood with two new engines. The old cam-in-block V6 base engine gives way to a new 24-valve 3.7 liter V6 that develops 305 horsepower and scores up to 31 MPG on the highway. The GT gets a new "5.0" badge to denote its 5.0 liter V8 (a proper 5.0, not a 4.9 like the Mustangs of the 80s and 90s). Output is an SRT8-chasing 412 horsepower.