One thing to consider on size - the A5 is probably just as big. Would be interesting for someone to actually size this car in a graphics program from the pic. Looks like 17" wheels so there is a good reference point.
Current Ride - 2011 328i Convertible - AT, Nav w/Sirius, JB/Cream Beige
Past - 2008 BMW 335xi Coupe (ED), 2003 BMW 530i, 1999 BMW 528i