Volkswagen introduced the first mass-production dual-clutch transmission in the 2003 Volkswagen Golf R32. Its six-speed Direct-Shift Gearbox, commonly called DSG, allowed one clutch to control odd-numbered gears and another to control even-numbered gears.
The transmission was developed with technology supplied by BorgWarner. Because the next gear could be preselected, DSG delivered extremely quick shifts while retaining the efficiency of a manual gearbox. The Golf R32 was the first series-production application, although Audi soon adopted the same basic technology in models such as the TT 3.2.
A common mix-up is Porsche’s earlier PDK system. Porsche had already tested dual-clutch gearboxes in racing, including the Porsche 956 in the 1980s, but those were competition prototypes rather than the first mass-market production transmission. Volkswagen’s 2003 launch brought the concept to road cars at scale.