been paving for near 20yrs i have taken up a lot of impressionate concrete driveways they are not so bad on the flat but if inclined they are very very slippery in certain conditions,
most driveways tend to track were the tyres run up the drive this is purely because of a poor base and to much sand used as a screed coat to which you lay the blocks on,there are differing opinions on how to do a base the easiest fool proof way is dig down until you have removed all loose materials ideally down to clay etc, then fill with a good heavy crushed stone whack that down well then a smaller grade of crushed stone once again whack well then imo as long as you sreed the (whole drive)in one go with 15mm sharp sand(i use metal electric conduit pipe for guaging the screed coat)once the base is level lay the conduit down both side and down the middle level it across,then simply get a straight edge to suit the width of your drive fill with sand then pull all back towards yourself,removing the conduit as you go and filling in,concrete in pin kerbs across the very front of your drive stops sinkage were it meets tarmac/slabs etc, then use a 60mm block you will have no problems at all finish off with a good silica sand to prevent movment and weeds job done
ive used 60mm blocks in bus stations so youve no probs there,good cost level are armstrong blocks and they have a good range of colours

if you do decide to blockpave the drive get references and go see the work there are a lot of cowboys about, some reputable companys aswell that take on paving gangs that are not pavers! and once its down they dont want to know.go to the likes of jewsons pick up a paving catalogue there is usually a step by step guide,have a go yourself

oh yes and stay away from tarmac its for motorways and race tracks etc lol