Compare the Vauxhall-Opel Vectra 2.5 V6 GSi - [2000] vs Datsun 280 ZX Turbo - [1981]. 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 Vauxhall-Opel Vectra 2.5 V6 GSi or the Datsun 280 ZX Turbo. We'll leave it up to you to decide which is your favourite.