Lol, Politicians always come up with ridiculous schemes like this when they want your votes, but once they're in, they waste £Ms of tax payers' money doing basically jack schitt like all other PMs before them, then blame their incompetence and failure on other people!
I think it's about time the Eton old guard were all hauled out in favour of people who actually know what it's like to struggle financially.
As for the speed limits, it'll never happen as people can't be trusted to behave. Look at the UK driving standards vs Europe! Why would anyone in their right mind give all these village idiots a higher speed limit??! UK motorists have awful attitudes and do things to others out of spite because they can't handle even the tiniest of motoring infractions.
If anything, it will get like America with even lower speed limits, because they are equally angry, aggressive and childish.