Yeah right, a live-axle Ford Mustang competes with a BMW M3. Hey, with 500 horsepower and a relative discount in the mid-$40,000 range, it sure does. Supercharged for maximum power and torque, the two-ton Mustang’s 5.4-liter V8 produces blunt-force trauma compared to the surgical incisions likely to be performed by the lighter-weight and more refined 2008 BMW M3, but some people like that kind of thing. The Ford Mustang Shelby Cobra GT500 is available in coupe and convertible formats, each with the same ridiculously long name.