That's the trouble with Diesels, you need the 3.0d minimum to make them remotely interesting. My mate bought a new 320d recently and it's quite possibly the most unremarkable, instantly forgettable car I've ever been in. Not a bad motor, quite punchy, 185hp I think....but just incredibly dull as a package. The kind of car where you just stick the cruise on and slowly rot in your chair.
As above, diesel won't be phased out overnight because of haulage and transport, but they are slowly being cleaned up with PFs and Ad-blue piss injection. It's the older pre-PF / AD-blue diesels that are still belching out carcinogenic soot particles which might get put onto another scrappage scheme. Petrols are getting ever more efficient and stupidly fast, and with that alongside rapidly improving electric development.....diesels days are nearly numbered. Only die hard penny pinchers will vehemently stick with it.
Oh Labour, Labour..... they who miss sold Diesel to us as the super fuel it isn't, purely to whack up the duty inline with Petrol. Double entry for their bottomless coffers.