Originally Posted by chefwong

Just picked up the wheels with the Advans installed. Stock OEM 20" sizes of 315/35 and 275/40-20.

Stacked up all 4 high, advans and Diamaris side by side, the Advans were about 1.5-2" taller than the Diamaris. So, even though spec for spec, the Advans are slightly wider fwiw.

My wrench told me they have seen some makes where even though the sizes are the same, sizes are just slightly larger or smaller.