this is the stuff. I was on a job where this was being used for the paths around site, it looks really nice and is smooth as a babies bum even after a year of use. I asked the guys they said between 40 and 50 per m2 for smaller areas like driveways.
I looked into DIYing it but it doesnt work out much chearper than that once hired in the special mixer and got all the gear.
Some of it is porous too which is a bonus for diveways.
The pics are not of my house or car unfortunately.....