Compare the Ferrari SF 90 XX Spider 4.0 V8 Turbo - [2023] vs Porsche 959 Turbo - [1987]. 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 Ferrari SF 90 XX Spider 4.0 V8 Turbo or the Porsche 959 Turbo. We'll leave it up to you to decide which is your favourite.