You've not given us much to go on really.....not to say we want to know the asking price.
As has already been said.....go check it over (JJ posted some 'what to look for' bits somewhere
on the forum, and I'm sure he'll refresh that on here shortly), but the main thing is....is has the
service book been stamped regularly ? Has the cam belt been changed ? If it's done nigh on 60k
miles then it should have, so check for a receipt. But then it's 6 years old now, so it's really time
it should be done anyway. If not done, deduct £400 at least for that. And.... if they're not a Smart
'indie' then do not agree to them doing it....assuming you want the car. Negotiate if necessary.
I'd ask if they have the previous owners phone number....call n get the real low down on the car.
With one previous owner it could be a gem.