you guys are forgetting, that's a DTM car. they'll get a lot of people to dig deep for the Astra Extreme. the difference between that Astra and a street Astra is like the difference between a VW beetle and a 911GT1.
as for the doors:
"The X-Treme is built on a tubular chassis, on which are hung a pair of carbonfibre tubs either side of the central tunnel. All the panels are carbonfibre too, apart from the roof, doors and pillars which are standard-Astra steel. Carbonfibre also makes up the brake discs and clutch plate."
that's a lot of Carbon Fibre, just about as much as the McLaren F1. i don't think you have much to worry about. it's like comparing the rigidity of a WSC Spyder to a GTP.
more DTM here!
http://www.dtm-racing.net/
obin
[This message has been edited by Obin Robinson (edited 08-03-2001).]