What is the correct tire size for 20x9 fronts and 20x10 rears to keep the overall diameter front and back as close as possible. I'd prefer a decent amount of sidewall too. Right now it looks like it is rolling on the wheels.
20" rims and side wall? LOL seems like your choices are SUV or DONK with limited choices even with those. Michelin offers a 35 series sidewall with their A/S Pilots
Mercedes. Not looking for anything huge in the sidewall department just an extra margin of safety. Right now the rears are 285x30 and the fronts are 255x30.