I'd buy an Audi over a BMW because I prefer the styling, the quality and because I prefer FWD/ AWD over RWD. To be honest I really don't give a toss what people think of me if I buy a certain make or model. If I like a car then whatever someone else thinks of it doesn't even enter into my consideration.
As for Audi drivers being wide, it's not just restricted to Audi. Plenty of BMW and Mercedes drivers seem to like hassling the GTI. They are all rep-mobiles. With BMW's, this means it's ether a 18d, 20d or 25d (if the older 5 series) all of which are no problem at all

. The Mercedes models are usually the 220 or 250 models, again neither of which are too much trouble.
+1, I think the owners of Beemers have moved to Audi. Funny never had anyone that I can remember try it on when I had my MK6 but since having the ED35 it appears to be fair game for a few drivers of Audi's, Merc's, Civic Type R's, Focus RS and Polo GTI's. Just let them get on with it 
The difference is that other hot hatch drivers generally want a bit of "fun". Being hot hatch drivers, we all in some manner share a passion for performance, and inevitably we are going to want to entertain that passion amongst ourselves. I'm not condoning racing on public roads, but simply distinguishing the mindset of the Type R driver from that of the Audi A4 20TDI or BMW 320d driver. The rep-mobile drivers have a tendency to consider themselves genetically superior to all other motorists - and therefore vastly more important - so their expectation is that nothing can or will challenge their authority on the road. Proving them wrong can be fun

With hot hatch drivers though (even VXR drivers) I've always found that its just a bit of fun that the driver is after, rather than a demonstration of genetic superiority.