The custom car professionals at Senner Tuning have released their newest upgrade kit for the Audi S5 Sportback called the Grand Prix. Including both styling and performance enhancements, this is one serious sports car. Topping all upgrades, according to the team over at Senner Tuning, was a clean set of 20-inch T1S Work Vara Diamont 2-piece wheels with a polished black finish and wrapped in 245/30 R20 tires for the front and 295/25 R20 in the back. The Senner Audi S5 Sportback was also given new suspension, lowering the ride height by nearly 40 mm up front, and about 35 mm for the rear. The guys at Senner also upgraded their Audi S5 with a new complete exhaust system for those stainless steel lovers along with new catalytic converters, and 4-pipe muffler adding to its intimidating look.