My parking structure at work is BMW heaven (Mercedes, and now Audi's too). The day after I bought my car I saw a baseline mineral grey in the garage with dealer tags. A week later there was another grey baseline. I would expect more, in Bimmer heaven and all. It seems like Audi is the new hot thing with young professionals here.
But I have a prediction: When the last model of Honda Accord came out around 2009, I was interested, so I noticed them. I hardly saw any for the first year. Now they're everywhere. I think in four years we're going to be wishing we could separate ourselves from the pack somehow.