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BMW M550d & X6 M50d performance specs leaked - rumors

Performance and efficiency combined

New details are starting to emerge about the BMW X6 M50d and M550d xDrive.

First up, the X6 M50d is expected to go into production in April with a tri-turbo 3.0-liter six-cylinder engine that develops 381 PS (280 kW / 375 hp) and 740 Nm (546 lb-ft) of torque - 40 Nm (30 lb-ft) more than originally speculated. This could enable the model to accelerate from 0-100 km/h in 4.9 seconds which is just 0.2 seconds slower than the standard X6 M.

The report also indicates the M550d xDrive will use the same engine and accelerate from 0-100 km/h in 4.7 seconds. In terms of efficiency, the sedan is expected to average 6.3 L/100 km (37.3 mpg US / 44.8 mpg UK) with CO2 emissions of 165 g/km. If everything pans out, it will roll off the assembly line in March and be offered exclusively in Europe.

Source: BMW Blog

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Comments (11)

nicholasTO
thats the advantage of diseal, quick acceleration and lots of torque
Dec 13, 2011 10:21 pm
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Microice
With all that 'power' under the hood its very unlikely many will care much for fuel consumption which makes me very skeptical about the whole tripple turbo set up. Sure it may sound cool to your mates but will the engine last when you give it the beans so often?
Dec 12, 2011 2:36 pm
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adz911
I'm also probably gonna get hung for this, but why is the video blurred? Is it because the X6 is so gut wrenchingly ugly? (OK OK, I know the real reason, I ain't that stupid), but just a random thought. (^^)
Dec 12, 2011 1:43 pm
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Expression
Amazing performance, but what's the point of this car?
Dec 12, 2011 1:10 pm
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Shumy
By the way I am really bored of the login difficulties in worldcarfans. the login thing at the top of the "Add a Comment" wasn't working still the beginning of the change of the web site but the login at the upper right corner wasn't isn't working without going to the home page, as well... At least this is the case for me
Dec 12, 2011 1:08 pm
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Shumy
Can someone please explain me how it possible that a 555hp SAV is doing 0-100 in 4.7 seconds while the same car with only 375hp is doing the same thing in 4.9?
Dec 12, 2011 1:05 pm
1 2
C-KING
Torque, 740Nm vs 680Nm
Dec 12, 2011 1:37 pm
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adz911
The torque figure determines acceleration, which in this case, is more than the X6M, whereas hp is the figure that tells you how well you can maintain your speed. Diesels as you may already know produce torque lower down in the rev range and a shorter rev band which means you can actually get the jump on some petrol powered cars. The reason Petrol powered cars can overtake at higher speeds in a drag race is simply because the hp is helping to maintain constant acceleration, while the diesel despite having more torque, cannot maintain acceleraion as well as a higher powered petrol motor. Sorry to bore. I was a bit of a geek at school.....many years ago..... :D Hope it helps though.
Dec 12, 2011 1:37 pm
2 1
djcocum
Torque is the answer. Impressive figures!!
Dec 12, 2011 4:47 pm
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Shumy
yeah adz911 that was even more than what I asked, thanks !
Dec 13, 2011 11:04 pm
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adz911
Sorry mate. lol. I kinda got carried away.
Dec 14, 2011 2:58 pm
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