The Audi R8 has always been available with either a standard six-speed manual or Audi's "R Tronic" sequential manual gearbox. The latter has all the advantages of a manual, but with faster shifts and the convenience of an automatic mode.
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The gear ratios for the R8's "R Tronic" gearbox include: First gear, 4.373; second gear, 2.709; third gear, 1.878; fourth gear, 1.411; fifth gear, 1.126; and sixth gear, 0.928. Its final drive ratio is 3.462. These are the same ratios as the manual gearbox.
The R8's automated clutch in the "R Tronic" gearbox is double-plated and has a 215mm diameter. It is the same clutch as the manual gearbox.
The driver can select "A" for automatic, "N" for neutral and "R" for reverse. While in "A," the driver can leave the gearstick centred and remain in automatic mode. If the driver wants direct control over the gears, however, he can move the stick to select manual mode. He moves the stick up for higher gears and down for lower gears.
The "R Tronic" gearbox is controlled by the car's computer. Selecting "sport" mode by pressing the button near the shift knob will give sportier shifting responses while the car is in "A."
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