Coupes constructed by Audi for the North American market have represented a broad scope from personal luxury two-doors to a world-beating supercar. The Audi A5 and S5 operate as a civilized two-door arriving from the A4 sedan. For an increased amount of driving pleasure, the TT coupe was introduced in 1999 as a super-sleek small sports car. The ultimate high-performance Audi has become the R8 supercar featuring the combination of all-wheel drive and mid-engined chassis. Audi coupes have provided the starting point for several new technologies and innovations for the brand. In 1980, an Audi coupe served as the launching pad for the brand's iconic quattro all-wheel drive system. Most recently, the 12.3-inch Virtual Cockpit display furnishes drivers of the new generation Audi TT and Audi R8 with a customizable instrument layout.