yea, fair point on the video, not really an expert in this stuff. It would have shown the speeds involved and that I had to jam on the brakes and that he then then stopped and blocked the exit (the lorry was stationary).
Ah, but your mistake was thinking that a BMW driver (even driving an old beat-up one) would actually stop, roundabout or not! He's now moving onto tailgating the pickup in front no doubt.
Showed me how to test to see if my car battery, going or bad.
Cheers mate!