[Tango589]

I drive by the rule 'might is right'and always let the big stuff go first, unless I'm pulling away from light next to a big-rigs' cab and can out-pace him before the lanes merge into one. On a multi-laned roundabout NEVER try overtaking a lorry if you're both going right as he will very quickly take your road. I've seen this happen and the result was not pretty.