They probably don't attract as much attention as say... an orange Ford Focus ST
(a guy that lives along the road from me has one).
To be honest a car which has a 'look at me' factor is not that important for me when buying a car. For me, I love and appreciate the build quality, ride, handling and the 6-in-line petrol engines that BMW's have. I think die-hard car enthusiasts will know whats under the hood of a 335i but others may not