Please remove duplicate log ins As part of an upgrade to PistonHeads, we need you to go to the Classifieds Preferences page and choose your unique login by 31st of October

Hide Do it now
Tuesday 9th August 2011


BMW 'M550dX' model name spotted. But what does it mean?

M car? Diesel? Intriguing...
M car? Diesel? Intriguing...
As if certain BMW M Division fans weren't struggling enough at the prospect of a whole range turbocharged M cars, here's another nugget that's going to cause a bit of controversy: it looks as though diesel power could be heading for M cars.

Well, sort of. A document purporting to be a supplier label for brake pads has hit the internet, and appears to list something called an M550dX (in saloon and estate form) among a whole ream of other BMW model nomenclatures.

Now, as far as we're aware, '50d' refers to the new 3.0-litre tri-turbo (yes, you read that right) straight-six diesel that is already certain to be heading for the X6 and BMW 7-series next year and which is expected to be unveiled officially at the Frankfurt show this September.

This unit could produce up to 395bhp (and no doubt a shedload of torque), so perhaps it's only fair that, should it find its way into a 5-series, it would get some M Division recognition. Judging by the badging, this is not going to be a full-house 'M' model, but it does look to us as though it will be a bit more than just an M Sport package.

That little 'x' also intrigues us - because that means four-wheel drive...

So the first diesel M car, then? Well, probably not quite - but the oil-burning M certainly looks to be a step closer.

Author: Riggers
Want more PH news like this daily - then signup for the PH newsletter here!