I found some more images of the G90 :[IMG]
I superimposed an image of the Audi A2 over the G90.
The roof angle is identical :
I'm completely baffled by the .25 .Cd that the A2 has, since it not only lacks wheel covers, but it also has wheel flares and a huge wake.
I would love to see an image of the underside of an A2. It must be totally smooth.