I have heard rumours for 1+ years of a very strong 5-series diesel BMW in excess of 700+ Nm.
I also got this tip via an anonymous source:
"BMW will deploy this and in the next year the following straight-6-cylinder-3.0-diesel-engine versions:
1. Version – 190KW
2. Version – 230KW
3. Version – 280KW with 740NM
An M-diesel engine is still in discussion and possible. Please take into your account, that the 3rd version is just a 3.0ltr. 6cyl. diesel engine."
ANyone want to fill in?
Also, below
quote from BMW M CEO Kay Segler:
"BMWBLOG: Without getting into specifics about future cars, do you see alternative drivetrains being available in M Cars? Will we see an electric M hybrid or a diesel M car?
Dr. Kay Segler Maybe there are two limits when it comes to technologies or drivetrains. Let’s consider drivetrains. The one is if there is a business case and whether it fits within the brand. When you talk electric, just take any electric car and run it along Nurburgring – hopefully you’ll make it back to the start. So it’s another car, with another purpose. So for a race car, that concept doesn’t fit.
When it comes to diesel, we were the one winning first in the Nurburgring 24 hours race with the diesel, and diesel is such is an interesting concept. BMW engines are brilliant from the technology side and it would be an interesting concept, only if the markets were supporting diesel.
It’s a pity that big markets like United States and China are not supporting diesel – all Latin America isn’t really supporting diesel, almost every Asian country is not supporting diesel, including Japan. So then you are basically limited more or less to Europe, especially very strong in Southern Europe- Italy, Spain, so that makes it difficult to run any business case for a diesel concept. But just from the sportiness point of view, diesel is maybe not for a pure racecar, but for performance cars it is very interesting."