BMW 635d This 6 series still drives like an absolute dream. For a 3 litre engine it's surprisingly economical and still goes like a rocket with the bulletproof BMW diesel engine. I have had the car for over 2 years now and in that time I've had the oil cooler replaced, a new glow plug module, a new starter motor and recently had an oil change. It's mot'd till Nov 26 with the last mot having no advisories. The car has no faults as seen in the pictures. The body work is in really good condition apart from the bonnet which is starting to fade a bit as also shown in the picture.