Originally Posted by Montana Crossfire
My point isnt for the overall vehical weight it's just a lot easier to turn the lighter weight wheels with lighter rear wheels it's free horse power.

Depends how light you go. There are a lot of guys on the MB forums that spun the crap out of Renntech Monolites with drag radials and ran better times with stock AMG wheels and the same drag radials. Unless you have a true slick, id stay away from ultra light wheels.