Compare the Austin-Healey Sprite MKII AN7 - [1961] vs Mercury Zephyr Z-7 Sports Coupe - [1978]. 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 Austin-Healey Sprite MKII AN7 or the Mercury Zephyr Z-7 Sports Coupe. We'll leave it up to you to decide which is your favourite.