Oh the great motorway debate,what a fucking nightmare!!!
I use it a lot to go from Swansea to Aberdeen and vice versa which is 600 miles near enough and what a shambles some drivers are.
Sticking behind lorries to save fuel
(mainly) BMW drivers who pull out THEN flash the indicator
Tailgating
Lane hogging
People who sit in a queue of traffic as SOON as they see the 800 yard sign for roadworks hence causing a 2 mile tailback when if they just read the signs to filter in one by one (like they do in Scotland) that problem is completely eliminated
People who let the missus drive
People who have one child and instantly buy a people carrier
People who believe their sat nav to the point where they completely forget ANYTHING they learnt regarding roundabouts
Most old folk
Some lorry drivers
ANYTHING to do with motorway patrol type vehicles (failed coppers)
40 mph roadworks for 20 miles with no one working on them
50 mph speed limits for bends a 1903 ford popular could have taken comfortably

Is that enough???