18" wheel sizes
Thread Starter
Junior Member
Joined: Apr 2009
Posts: 43
Likes: 0
C300
MBWorld Fanatic!
Joined: Oct 2008
Posts: 2,601
Likes: 28
From: Atlanta, GA
2008 C300 Sport 6 Speed Manual, 1953 Chevy Bel-Air, 2015 Audi allroad, 1963 Chevy Apache
You do need to do your research and get a good understanding of wheel and tire sizing. Like some of the others have said, there is not a definitive answer. Look into plus 1 and plus 2 sizing to get an idea of the size tires you will need with 18s, 19s, etc. What you are trying to accomplish is increasing the wheel diameter without increasing the overall tire diameter, which would throw off your ECU, ABS controller, etc.
