Yesterday I went fishing for a Cd for the Oldsmobile AEROTECH for "Cd".I GOOGLED aerotech drag coefficient and a site came up with photos and drag coefficients.The site is Fuel-Efficient Vehicles-Now!
http://www.fev-now.com/index.php?page=aerodynamic_drag I'd transfer the link if I knew how.Sorry! The site was new to me and is worth a look.And I think they are looking for contributors,so for you that know how,this might be a worthwhile focus for a little energy.May the Force-reduction be with you!,Phil