Happy Boy this morning.... It was like driving a different car to work this morning. My first 12k's to the Motorway is a windy road, not that I'm a speedster, but could go round the bends a little faster without being forced over the lines with the give in the sidewall of the old tyre...and I can finally hear my music without turning it up to 20 :-). Although the other tyres were new and on the car when I bought them, they were crap... So if anyone is thinking of buying a budget "performance" tyre, don't get Evergreen!
As for the speedo readings, this was checked before I changed, as Sobanoodle says, not anything to worry about.
Cheers Guys....your input was much appreciated!