No spare tyre. Model Y tyre size are 255/45 R19. Getting a 20" on the Rear 275/45 R20 should be 275/40 R20, would make the rear ride a bit higher giving it a bit more ground clearance. I would rotate the 4 off 19" in the front and also have spare wheels if needed. Speed correction and diameter would effect the way the vehicle drives. Smaller diameter faster acceleration, larger wheels more top end and less roll resistant? What are your thoughts and experiences on this delightful mullet subject.
