hmm ... will have to keep an eye on those then.
But i totally agree that with the insides being so noticeable on the 18" m sport wheel, the last thing you wanna see is unsightly rust that totally detracts from the asthetics of the car.
Its the kind of thing that would drive me mad, as I always like my cars to look their best and religously clean once a week, with particluar care always taken with the alloys.
One of the things I did like about the 18" m sport alloys was that they looked easy to clean the inside of the rims, from a practical / cleaning point of view.
They are also a stunning alloy design, which is also why i do not want rust showing through them.