Deisel for me is a no no, I run a petrol V6 Elite and it smells of leather, is very quiet and I don't have the stink of deisel to put up with. Don't anyone dare say that they cannot tell a deisel from a petrol just by smell either, and without it running!
Petrol is more expensive to run, yes, but only until the fuel duty is whacked again. Petrol has already been caned so its a safe bet that deisel and lpg are in the firing line.
Whichever way you choose it is a personal choice and an ex fitter of nigh on 40 years around the 'stinkers' also influenced me.
Incidentally, why do so many deisel drivers fill up, and sometimes spill the fuel on the forecourt for others to walk in then traipse it into their own vehicles along with the all pervading smell?
In my experience the parts and maintenance for deisel engines are a little above those for a petrol too.
Mileage? Mine has well over 160k on it and only recently had the head gaskets done. It all depends on how well they are maintained and the quality of any parts fitted, including the oil and filters.
You pays your money and you takes your choice; Any mistakes on judgement is for the buyer to bear as it was their decision.
GudLuk - buy what you feel is right for you.