2021 Shelby Super Snake Speedster slithers into sight This highly modified Ford Mustang GT is graced with 825 horsepower and roadster styling. Listen - 02:21 This modified Mustang packs a wallopping 825 horsepower. Shelby On Saturday, high-performance vehicle builder Shelby American announced a range of new super-fast Fords including the 2021 Speedster edition Super Snake. This two-seat car offers extra style and loads of performance. The new Speedster is based on the Super Snake coupe (which is in turn based on the Mustang GT), a car that was inspired by an experimental vehicle built in 1967. Naturally, these two Mustangs share the same basic hardware, which means the Speedster comes with a 5.0-liter Coyote V8 engine that's crowned by a polished Whipple supercharger, a combination that delivers 825 horsepower when fed 93-octane fuel. That's a healthy bit more than even the Shelby GT500's 760 ponies, and it's enough to get this car to 60 mph in as little as 3.5 seconds.