20 inch and larger wheels will make the ride harsher. The Tire Rack website (Current Special Offers) and their forum (Wheels, Tires, Suspension & Brakes Forum-Sponsored By Tire Rack - MBWorld.org Forums) contain an extraordinary amount of information, including discussions of wheels in general as well as wheels they sell.
The one big thing about the 4-Matic is that the revolutions per mile must be the same, front and back. This eliminates many staggered wheel setups. You must also be concerned about offset, width, and other factors so as not to rub against your brakes or your fenders. Proper lug nuts are also important.
The one big thing about the 4-Matic is that the revolutions per mile must be the same, front and back. This eliminates many staggered wheel setups. You must also be concerned about offset, width, and other factors so as not to rub against your brakes or your fenders. Proper lug nuts are also important.