+1 Lexus had a huge problem with the salt on our roads especially with the IS200 alloys which they changed under warranty by the shed load.
Yep, thing is, Lexus didn't mess about. You drove in, they said 'we'll change the wheels for you sir' then they would come and pick the car up and you'd get it delivered back cleaned (if you wanted) with something nice on the passenger seat like a T shirt, bottle of wine, golf vouchers or something else nice. Oh and it didn't really matter if it was in warranty either!
I gave up trying to claim for Rays as Nissan were crap.