I was driving around in London and got passed by an unmarked Audi A4 with all the blue lights that you could cram into the lights flashing away. It started me thinking about what other marked, unmarked Audi cars are there out there but also what other sign written Audis are there. I had a quick look one Google to see what I could find but I'm sure there are many more. If you drive or see one add it to the page..
I do love the Anti-gang crime Q7