* V6: Around 210 hp
* GT (V8): Around 300-400 hp (depending on whether it was a standard GT or a California Special or other special edition, slight variations existed)
* Shelby GT500: Over 500 hp (the exact number varied slightly depending on year and model).
To know the exact horsepower of a specific 2010 Mustang, you'd need to look up its Vehicle Identification Number (VIN) or check the vehicle's specifications.