Compare the Ford Mustang GT 2.3 Turbo - [1983] vs Ford Mustang 5.0 V8 Indianapolis 500 Pace Car Replica - [1979]. Find out which car is the fastest, most powerful, lightest or has the biggest engine in our top trumps style comparison page. Find out which car has the highest top speed or is the fastest accelerating, is it the Ford Mustang GT 2.3 Turbo or the Ford Mustang 5.0 V8 Indianapolis 500 Pace Car Replica. We'll leave it up to you to decide which is your favourite.