Back in the '80s there was a family in my area - 2 adults with 2 small kids - that drove around in a '70s vintage VW Kammback (rear engine station wagon/touring) and all four of them wore motorcycle helmets.
[headbang]That's awesome! I wonder what planet they were from?![headbang]
I'd wear a helmet.... if I were in a Super7 with a four point harness, but it wouldn't matter, 'cause I'd still kill myself... in an E30 I probably wouldn't wear a helmet 'cause they're so slow, so I probabmy wouldn't need a four point harness. either.
Graham, I don't mean to post this as a good example, but I'm assuming that your GF wasn't wearing a 4point for her accident, but do you think a 4point harness would have helped her? (not to say it would be worse). How is she anyways, and is she enjoying her MR2?
Chris, check this out;
http://www.bmwboard.com/forum/showthread.php?t=27143
I hope you don't get a false sense of security when you get this seat belt installed. The car is still going to fun as hell to drive, but they can bite you in the ass any time they feel like it. You could still find yourself in a situation where a four point harness, or an airbag, or a helmet won't matter one bit. Like this (bad taste?)