The trouble is that most Russians aren't rich and can't afford to buy overseas cars. It's good that you own an Audi but I guess you know that Audi's very expensive as far as maintenance and operation are concerned, not to talk about its initial price. I mean new cars. There are loads of old second-hands Audis in Moscow.
I don't have a car because I'm not allowed to drive yet - I turn 18 in November and can't get a driving licence now.