Originally Posted by europrince
There is nothing wrong with the material the Style 230s are made from. Every rim that has such a long distance between spokes is going to have the same issue. Not only are you on elastic bands, there are fewer spokes to absorb your hard driving, so the stress of your admittedly hard driving gets passed into the rim. If you're going to drive hard, never choose a 5 spoke for a large rim.
I drive my stock 18" M-Pars on a 35 profile winter tire.
Eventhough my car is heavier, my spokes are skinnier and about the same distance appart as the style 230, my rims are still true.