Back on topic.
I find it's the opposite for me in Manchester.
In my Zed, I find people expecting me to be some testosterone charged maniac and making space for me!
For example, I'll be on the inside lane at the lights. Lights go green. I crawl away slowly and the car next to me in the "fast" lane crawls away even slower awaiting me to zoom off ahead.
Or I'll be in the slow lane pootling along and the traffic ahead slows, cars in the outside lane slow down leaving a gap expecting me to suddenly pull out from the bus ahead.
Totally different when I'm in the wife's mini cooper.
People will bully me back into the inside lane or cut in front of me like I'm not even there.
Maybe it's down to the mini being a boring white and the zed being an in your face sunset orange?