Saw this idiot driving on the M4 towards the Severn Bridge. Drives at stupid speeds, swerved around traffic, abused other road users and acted like a complete child. Too dangerous to be on the road. I phoned the police about him and reported his actions, they had already had other reports and will be looing into him. Stupid.
The left lane you were in is for the motorway or for the 1st lane. The white car was in the right as their lane goes to the other two.