Yeah but common sense is to be used. Unfortunately many people lack it. It's just about actually being aware and courteous of other drivers. That's the issue. I agree, keep left if your not overtaking (or at least doing a solid bit over the limit), cause that sh*ts me, but if I'm in the left lane and there's a few people in the right lane doing the limit and I'm doing the same or just under, and I've got someone clearly trying to get around/through, I'll either back off for them to go by in my lane, or I'll give it a bit to get past the group of people so they can go too. It's just awareness, no one looks anywhere but on the floor 3m in front of them. And as much as I'd love to play the racist card, it's everyone.