Hiya,
I started a thread on this car a little while back:
http://ecomodder.com/forum/showthrea...saab-6823.html
Unfortunately the Cd is 0.32 -- not as good as you'd think, and not as good as the Tatra (or my xA, for that matter) -- but it does look good to me, and maybe with flush bumpers, a smoothed underside, and a few other tweaks, it could be better than a gen 3 Prius?