Clearances (Ground to Fender lip):

Front: 24-3/4"
Rear: 25-3/4"

55 tires, no rubbing.

 

I had rubbing with 55 tires, so I switched to 50. Absolutely no problems. I can't see a difference in the speedo, and the ride is about the same (read: crap).

I'm actually one of the weirdos that run 50's on the front and 55's in the rear. It's a long story...

 

I'm running 205/50 and have no problems it handles better due to less tyre flex than the 55 profile and comfort is fine well anything would feel comfortable after my last car that was lowered 2.5 inches and on 215/40x17 tyres