Compare the Vauxhall-Opel Manta 2.0 GTE Coupe - [1982] vs Ford Fiesta 1.5 TDCi ST-Line 120 - [2017]. 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 Manta 2.0 GTE Coupe or the Ford Fiesta 1.5 TDCi ST-Line 120. We'll leave it up to you to decide which is your favourite.