Here is a video of 2015 Audi R8 and R18 e-Tron Quattro raging at the Monza Circuit. Both cars sound absolutely fantastic regardless of the final specifications.
The R8 GT3 has an aggressive front bumper, a ventilated hood and a massive rear wing. There are also aerodynamic mirrors, revised side skirts and a single windshield wiper. Last but not least, there’s a ventilated rear fascia and a prominent rear diffuser.