This dickhead frequently does this on the A248, as it merges onto the A14 in Cambridge. Holds back the traffic to dissuade anyone from overtaking him with over 200 meters of clear road ahead of him before the road merges. Refuses to let cars pass and drives aggressively to stop anyone making reasonable progress further causing unnecessary tailbacks.
Stupid biker cutting up my mum on the roundabout before these lights and then when he gets to the lights filters ahead of the mini in front and jumps red light almost hitting a pedestrian
Typical BMW parking