I have the exact figures at home, but do about 32k miles/year and average 55mpg or so. It's a bit more now as I am driving a lot slower, but I haven't really been doing that long enough to get a decent figure.
Anyhoo......32k miles at 55mpg, assuming about £1.36 average price/litre over the last year = £3592 on fuel. GULP! And that's just me, not the other half although she does much less mileage than I do.
Have to also add in the extra cost of servicing, tyres, insurance of higher mileage and it really is quite ridiculous!
Currently trying to get into 'find a new job' mode. Even if I have to take a wage hit to get nearer to home. The thought of a 10 mile cycle to work fills me with joyful thoughts. Just need to crack on & find something.