considering swapping wheels & tires with a fellow model S owner.
car1: 2013 85. 19" Model S Base Wheel.
car2: 2015 p85d. 21" Turbine Wheel - Grey
The tire sizes are identical - his p85d is not staggered. All 8 wheels are 245/35-21.
My question is: what, if any, obstacles do we face? Can we...