ON BMW's E38/E39 and others the back passeger window viewedfrom the side has a common curve.On one episode of Top Gear, Clarkson says it has a name, i the "xxxxxxx curve" It's the one just diagonally up from the petrol filler here:
http://www.google.co....18&ved=1t:429,r:2,s:0
any ideas what this cuve is called, thanks