Will 20" 9.5" width 45et wheels with 295/45/20 fit my GL450?
seems the range of rims sizes that will work are 20-22" x 9-10.5 with an offset of around 40-50.
on a gl550 you can run a little lower offset 40 ish (10mm out more) due to the fender lips.
tire sizes seem to range from 285 up to 305.
good luck



