Braveheart_shaped_box wroteDon't know the going rates but no doubt some of the regs will, will say though if you lease or buy a car never ever ever ever let the driver take it home, don't care how 'trustworthy' they are or what they promise, they will use it as taxi, their own family transport or even hire it out AND use YOUR gas!
What he, she or it said.
Our driver rents his car when he/we need it. It costs him IDR150k/day and he charges us per the drive.
For instance:
Candi - DPS and return 400k
Candi - Ubud 300k
Candi - Singaraja 400k
He pays gas and all charges/kickbacks
Alternatively you can rent a car on a long term basis (my suzi jeep costs 1.6/month) and just rent a driver for the day but it has to be a different driver to the one above as he is a licensed tour driver and if caught driving a "normal" car with people would get his wrist severely slapped.
Driver for the day (from 8 till 8 often) cost us IDR150k + lunch and dinner.