Well I'm not going to debate the validity or functionality of the rear "brace," be it from a quality organization or not (IMO, there are much bigger fish to fry in an E30 chassis and I'm not convinced that anyone outside a DTM driver at the limit on the track will notice a differnce), but the fact remains that there is no rhyme or reason to this "mod". Sorry to hijack.
Getting off topic, dude, what car are you in? I've gotta believe that with your fuely reading sig deal, that it is a 325? It looks really slick, btw.
Haha, well I don't necessarily see the benefit of the rear bar either...some say it works but on the streets the effects are negligible.
It's a 24V M50 franken motor:
http://m42club.com/forums/showthread.php?t=4471Thanks man

I love this thing!
To the O/P, I would pass on this car...just be patient, you'll find the right car for you. With E30's in particular, nice ones are hard to come by especially for reasonable pricing.