THE RS4 uses 8.5J x 18-inch cast aluminium wheels with a unique nine-spoke design. Wrapped around the rims are 255/35 ZR18 94Y Pirelli P-Zero tyres at both the front and rear. A 7.5J x 18 'winter wheel' with a five-spoke design is available, fitted with 225/40 R18 M+S tyres. There is no spare wheel: the 18-inchers are too big for the standard wheel well found underneath the cargo floor. A puncture repair kit (temporary tyre sealant) is provided instead.