to be honest – i wouldnt buy any new (ish) diesel car nowadays, emissions have made car makers bolt far too much crap onto an essentially dirty engine in order to clean them up. They have now become too costly/unreliable compared to petrol engines which dont seem to have advanced much in the lastfew years.
That coupled with the price of petrol vs diesel at the pumps and generally the premium for the diesel engined car in the first place means I prefer petrol nowadays.
Saying that – I have just bought a diesel Merc Sprinter with all their inherent injector issues! (wish me luck)