This latest episode from the superb DRIVE channel talks to the Technical director of quattro GmbH, Stephan Reil, who explains the company’s role. A wholly owned subsidiary of AUDI AG, quattro GmbH is located in Neckarsulm and exists to develop specialist and high performance Audi automobiles, such as the R8, RS 3, RS 4 and so on. Taking its name from the original four-wheel drive Audi Quattro, a lower-case ‘q’ is used in honour of that iconic machine.