This is a drag race with a real twist. UK car-buying website Car Wow has lined up a few high-performance roadsters and arranged a drag race that tests more than just the straight-line speed of the sportscars.

Click here to see an SUV drag race of some of the most powerful off-roaders on sale today.

The feature cars in this video are the Mercedes-AMG GT C, the Audi R8, a McLaren 570S and the hybrid BMW i8. Each car has a folding roof. In this test, the speed of the folding mechanism is put to the test as well as the car’s acceleration.

Before you click on the video below, which do you think is quickest?