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According to Audi, the new twin-clutch transmission is designed to work with longitudinally installed engines and the quattro all-wheel drive system, with its 550 Nm torque capacity making it suitable for a wide range of sporty models. As with the outgoing S tronic gearbox, Audi drivers can use the new seven-speed S tronic in various modes. The fully automatic mode, in which the computer selects the gear, keeps the D (Drive) and S (Sport) programs available. The gears can also be manually switched with the shift selector lever or with the optional rocker switch on the steering wheel.