2013 Audi S5 Cabriolet Premium’s roof opens in a mere 15 seconds and closes in 17, at speeds up to 50 km/h. The exclusive Audi Acoustics Roof reduces noise levels to hardtop levels while the real glass rear window offers good visibility. Chrome grille inserts, aluminum mirror housing, quad oval tailpipes, and exclusive interior highlights all come together to create the distinctive 2013 S5 Cabriolet Premium design. Bi-xenon headlights use electronically controlled gas-discharge lamps. The arc unit contains a gas consisting largely of xenon, an inert gas that is ignited by high voltage. The resulting arc is very bright and serves as an excellent light source to illuminate the road. Xenon light is much closer to daylight than conventional halogen, giving it a light blue-white colour.