ABT Sportsline released a new line of styling kits this past week, the two we have here are for the Audi A8 and Audi R8 GTR cars. Starting with the new GTR-version for the Audi R8, the V10 supercar received a lot of lightweight aerodynamic parts to enhance its appearance. With a new front bonnet, front and rear aprons, and carbon fiber adjustable rear wing, the aggressive R8 GTR looks like it could take on the notorious Nissan GTR. The windows were even replaced with Makrolon pieces, a super strong, lightweight material that is better than the factory parts. ABT’s tuning firm swapped the original door panels with carbon fiber ones, and all these feather-like additions made the Audi R8 GTR 100 kg lighter than the stock model.