22" staggered are available, i am running dunlop sport maxx 265/35/22 on the front and 305/30/22 on the rears.....gives the truck a much aggressive stance.

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" Despite its supercar attributes, the M5 still doubles as a soberly practical, spacious saloon - only with the ability to scare four passengers in comfort all the way to the local coronary unit". Top Gear