There's some really good opinions going on here. I so believe that road conditions should dictate the speed limits. That happens in Europe, as such rain or snow limits are reduced and clearly marked.
I believe we should be in line with Europe at least, especially motorways.
Motorways at night should be given free reign to increase upto 100mph. That's the majority of drivers who like to go above the norm. Either way the standard of driving needs to improve in the UK. Re-tests every 10 years. Elderly every 5 years. There's older folk who are behind the wheel on the motorway doing 56mph in the middle lane with cars undertaking and overtaking. Its bonkers.
I'm quite happy with suburban speed limits. Just ditch the speed cameras!!
Either way nothing will happen in the UK because we aren't Europe savy. We want nothing to do with the Euro and secondly we want out of Europe WTF! Okay so that'll bring back duty free yeeeha! But England sucks!! The end!!
For reference on the safest road checkout this data. I actually thought Germany would be far better than it was.
http://www.abd.org.uk/safest_roads.htm