Dual-clutch transmissions are by now so familiar and well-understood that they’re even showing up in compact cars like the Ford Focus. But in 2005, Audi’s Direct-Shift Gearbox marked a drastic change in the transmission world by offering an excellent combination — and alternative to — traditional manuals and automatics. It debuted here in the Audi TT V-6 Quattro, and derivations subsequently appeared in the Audi A3, Volkswagen Golf, the Bugatti Veyron, and the 2008 Porsche range.
“DSG combines the best features of manual and automatic transmissions… As in automatics, there’s no interruption in the flow of torque during full-throttle upshifts. As in manuals, the clutches are both disengaged to rev the engine for smooth downshifts. Efficiency losses inherent to an automatic’s torque convertible and multiple open clutches are eliminated.”