Ford has revealed its most powerful engine ever. The naturally aspirated 5.2-litre V8, developed for the Shelby GT350 version of the Ford Mustang, generates 526bhp of horsepower and 581Nm of torque. With a redline of 8250rpm, it’s also the highest-revving production 8-cylinder in the history of Ford, whose very first V8 engines hit the streets more than 80 years ago.