I looking at examples like this:

http://www.autotrader.co.uk/classified/adv...7449&logcode=p#

Any advice or things to look for? Is there a "Big" service I should look out for?

And what is the realistic miles per litre?

On my Motorcycle there is a valve clearence service every 16000 miles where they have to take the engine appart and it is expensive. That sort of thing I'd be intertested to know about.

Thanks