merging onto the a13 from central london i find the best approach is just the "i dont care, i am in a 1k car, you are in a 50k car, i AM merging if you like it or not!"
Lots of people seem to say this. They can't all be daft enough to have not realised that if you merge in a banger and bang into a 50k car its you who pays for the damage not the driver of the 50k car you drove into because he wouldnt let you in?