I would love the speed limit to go up to 80mph... that would be great.
But what would be BETTER would be punishing middle lane hoggers.
I HONESTLY believe that is people pulled in when they are not over taking, we could sit at 70 for longer and not NEED to jump up to 80.
Taking the limit to 80 will just mean you have to do 50-80 all the time (more fuel, more pollution)
Enforce the middle lane even OUTSIDE lane users to pull over when they should/can do and you won't have to drop down from 70 a much.
Therefore making the journey quicker and more economical. Plus if you FINE the idiots, then the government get cash that way