This driver is an absolute arsehole, he does not know speed limits, he does not use his signals, he cuts you up at roundabouts and brakes for no apparent reason. I actually believe he is part of a insurance scam group!
Stay well clear of this car if driving behind it as he seems to just slam on for no reason.
The driver was clearly drunk or on drugs as he was weaving in and out and no driving in a straight line.
Driving inconsiderately, tail gating, brakes suddenly just to make rude gesture at another driver.