My previous daily driver was a 2002 grand prix gtp. Supercharged. Red. I never got speeding tickets in that thing, yet was pulled over many times. I think like 7 times during the time I owned it. 47 in a 35, 80 in a 65, etc. Yet the officers were always friendly and just let me go. With my Golf, I go like 7 mph over the limit, it's ticket time. I've gotten maybe 5 or 6 tickets since I bought it. Every single time I get pulled over, I get a ticket. It is the car, I talk to them the same way, look them right in the eye, ticket every damn time. I even got a ticket because an officer insisted he "just knew" I was speeding through town when I wasn't. Last ticket I was coming down a hill and the officer pulled onto the freeway ahead of me, 87 in an 80 zone. I'd never even heard of them being able to radar you behind them like that. But I should have known, my last ticket before that was courtesy of an airplane. Apparently, pigs can fly.
I think it's all about money, the GTP was blue collar, the VW is newer and more snooty, and that's all the police want, your money.