Pretty neat article
http://www.grandprix.com/ns/ns16771.html
Surely that is near impossible for the teams. Although I did note in A1GP that even from the unusual camera angle you could quite easily see other cars in the mirrors even through the wing. It made me think that the F1 crew make such a fuss whereas the A1 guys' don't vibrate and give great visi.the driver has visibility to the rear and both sides of the car