The Touareg copes with a difference of 3 mm tread depth between the axles and 2 mm between tyres on the same axle.
However, since apart from the hole in the middle which has to be exact for self-evident reasons, tyre sizes are nominal, all four corners should have tyres with the same size, same make, same model, same tread pattern.
Over the years some owners have copied Porsche's lower profile/wider rear tyres than the fronts by very careful matching of overall diameters but that's not for the average owner.
However, since apart from the hole in the middle which has to be exact for self-evident reasons, tyre sizes are nominal, all four corners should have tyres with the same size, same make, same model, same tread pattern.
Over the years some owners have copied Porsche's lower profile/wider rear tyres than the fronts by very careful matching of overall diameters but that's not for the average owner.
