Call me crazy but I find this exciting: BMW will finally be making available their wonderful diesel engines in US market vehicles in the fall. The X5 will finally start making sense and a 335d wagon would be a fantastic family car type thing.
By the way, The Freep was first to notice that in a recent well circulated rave review of the BMW 135i, Jeremy Clarkson made a basic mistake with his understanding of the BMW 3.0 twin turbo gasoline engine.
In the article he describes the two turbos as being of two sizes, one smaller and more easily spun for low r.p.m. and a larger for added thrust once the engine is up to speed. In fact the 3 liter turbo has parallel turbos of equal size.
What Clarkson did do is perfectly describe the BMW 3.0 liter Diesel 6. At 265 HP and 425 lb-ft @ 1750 rpm BMW claims 23/33 mpg in the 335d and a slightly disappointing 19/25 for the X5, but then again not bad considering it weighs as much as a 50' Hatteras convertible.
The engine is quite clean because of a process I was not familiar with, urea injection.
The Diesels will have an auxiliary tank for the urea solution (AdBlue in marketing terms) which when sprayed into the exhaust system will help turn nasty nitric oxides into nitrogen and water vapour. Not really clear how involved replenishing the tank is but that's certainly not an issue during the free service period.
Anyway.... sorry about this sensible motoring interlude, back to your regularly scheduled motoring insanity!