BMW's are not that great, had a couple and didn't enjoy them, rear wheel drive is great in the right car, and the right car ain't a BMW if you ask me.
If you really want an animal RWD try a 200sx with a few mods, not some pansie 3 door saloon with too much trickery. It's all or nothing for me, I like the Audi Quattro for the sure footed aspect, but I also like a decent RWD when the mood takes me, not a half way house BMW.