After viewing the picture comparison of web browsers posted here:
http://www.myconfinedspace.com/watermark.php?src=wp-content/uploads/2007/08/1188334660818.jpg
which has made it half-way around the internets already, I felt compelled to post my own collection of browser-car photos that I picked up months ago, all from Wikipedia.
Firefox (with extensions):
Opera:
IE:
And no, the choice of colour schemes is not an accident!