Compare the Cadillac Eldorado 7.0l V8 Hardtop Coupe - [1967] vs Nissan 300ZX 3.0 V6 Turbo - [1984]. 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 Cadillac Eldorado 7.0l V8 Hardtop Coupe or the Nissan 300ZX 3.0 V6 Turbo. We'll leave it up to you to decide which is your favourite.