his guy is a menace and trying a 'crash for cash' scam, he repeatedly broke harshly and slowed down (assuringly using the handbrake as no lights came on) Be extremely careful,
Drifting between lanes on the roundabout, after the roundabout, driving down the middle of the road and no indicating. This driver was driving like they were drunk.
Black BMW Hugged my bumper all the way onto a slip road, attempted to overtake at speed dangerously as I myself was pulling out to overtake, then hugged my bumper at speed for several miles before thankfully I was able to turn off. Total disregard for anyone else on the road. Dangerous.