I've reported this to the police, but I doubt if anything will come of it, unfortunately.
I was walking down the road this morning, and was aware of a car sounding it's horn continually behind me. When I turned round I saw a car driving parallel to a young man on a bike. The driver had stopped sounding his horn, but was leaning over the woman passenger, who was screaming at him to stop, in order to yell abuse at the cyclist. From what I could hear, it was something about cycle lanes. Anyway, when they came off the roundabout, the driver cut across, right in front of the cyclist, across the cycle lane, obviously with the intention of knocking the cyclist off. Luckily, the cyclist was experienced enough to stop without falling off. Then the car sped off.
I took the registration of the car and reported it to the police, but, as no one was hurt, I doubt that much will come of it.
Sorry - not much point to all this, but I am still shocked at how aggressive the driver was.