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.
2014 911 C2 Cab, Considering adding 2er convertible
Past - 2011 328i Convertible 2008 BMW 335xi Coupe (ED), 2003 BMW 530i, 1999 BMW 528i