Confirm Tire SizeShopping for tires? Select tire size to proceed.
2012 Audi A8 Quattro L W12
Audi equips your vehicle with more than one possible size during production.
Please select the size installed on your vehicle from the choices below.
Original Equipment Wheel Diameter: 20"
265/40R20Original Equipment Wheel Diameter: 21"
275/35R21![The tire size is set by the numbers on the tire. The numbers are width, ratio and diameter in order]()
Where can I find my tire size? 
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Where can I find my tire size?