Compare the Lamborghini Aventador LP770-4 Roadster SVJ - [2019] vs Porsche 911 GT3 996 - [2003]. 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 Lamborghini Aventador LP770-4 Roadster SVJ or the Porsche 911 GT3 996. We'll leave it up to you to decide which is your favourite.