The Audi RS7 Sportback weighs about 1700 kg and it is bonkers fast off the line thanks to its 4.0-litre twin-turbo V8 as I found out during my review but there always seems to be someone who wants to make it quicker! Presenting the world’s fastest Audi RS7 fitted with APR Total Race Stage 2 package. This beast is a full 1.5 seconds faster over a quarter-mile compared to stock and managed to record a time of 10.1 seconds. Watch the video to see the angle of the body and you will realise just how fast this guy is going in such a big car!