I've always found the opposite when i have been in Audi Garages. I even got a test drive in an RS6 from one of them.
It was the BMW garages that i've been in that were the shockers. Only once have i been in a BMW garage were a salesman bent over backwards to help. Mind you i think he felt bad as i told him i was looking at a 535D Touring and he said "Approved Used i take it?" When i replied "Er no! New thank you very much" he couldn't apologise enough. The thing with BMW is, for example, I sat in a 535D Touring and then sat in and M5 Touring and i said to the salesman the M5 doesn't feel £30k more expensive. Whereas the Audi RS6 felt £30k more expensive than an A6 Le Mans. It's hard to explain and it may just be I'm biased towards the Olympic Logo I have a feeling that the M1 won't feel however many £k more expensive than a 135i. All my opinion of course.
But i do think Audi are on to a winner with this one. £40k for that car with that engine and that spec is a very good price imho.