wouldnt like to work it out, might realise I cant afford it really depends on age and driving history how many miles etc for fuel and obviously the car, if it needs bits and bobs or is coming up for a re build then it will be quite a lot, im lucky enough that if the cossie brakes and I dont have enough to fix it I just put it away till the end of the month and use one of my other cars, when I drove it every day it was a struggle always needing bits and bobs and constantly putting fuel in.