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18'' winter wheels on Model S

Assuming they clear the brake hardware, 18s if not heavier, should be more efficient than 19s, due to having narrower tread width and less rolling resistance.
235/50R18XL should be the closest size to replace 245/45R19XL.
I'm not 100% convinced they will fit properly, however.
 
  • Informative
Reactions: Vinc