AutoBild: The better M5: A diesel?

BMW M5 | June 4th, 2012 by 19
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F10 BMW M5 vs. BMW M550d. Is it a fair comparison or simply an apple to oranges approach? German magazine AutoBild is on a mission …

F10 BMW M5 vs. BMW M550d. Is it a fair comparison or simply an apple to oranges approach? German magazine AutoBild is on a mission to find out if the M550d, BMW’s first tri-turbo diesel, is a better product than the “pure M5”.

Earlier this year BMW unveiled their first M-tuned diesels powered by an all-new tri-turbo engine that develops 381 horsepower and 740 Nm (546 lb-ft) of torque. Along with the impressive performance, the M550d Sedan offers fuel economy figures of 6.3 liters per 100 kilometers in the EU test cycle.

Part of the M Performance Automobiles family, the M550d uses a series of M-touched technology: M-tuned suspension, bodyshell mounting, engine and transmission mounting, springs and dampers, all standard and optional chassis control systems, and the Servotronic mapping for the hydraulic steering.

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Compared to the M550d, the M5 is what someone may call a pure M machine. Powered by a newly developed high-revving V8 engine with M TwinPower Turbo (consisting of Twin Scroll Twin Turbo technology), the M5 brings to the super sedan market 560 horsepower and peak torque of 680 Newton meters (502 lb-ft) between 1,500 and 5,750 rpm.

So power aside and straight line from 0 to 60 mph, which one is a more well-rounded vehicle?

AutoBild places the M550d xDrive ahead of the M5 with a total of 512 points vs. 495. Here are some of the stats:

1st place: BMW M550d xDrive (512/700 points)

Weight: 2040 kg
0-100 km/h: 5,2 s
0-160 km/h: 12,0 s
Braking (100-0 km/h), warm: 35,6 m
Noise at 130 km/h: 69 dB(A)
Average fuel consumption: 9,2 l / 100 km

2nd place: BMW M5 (495/700 points)

Weight: 1950 kg
0-100 km/h: 4,4 s
0-160 km/h: 8,6 s
Braking (100-0 km/h), warm: 33,9 m
Noise at 130 km/h: 72 dB(A)
Average fuel consumption: 11,6 l / 100 km

Driving Center Groß Dölln lap times:

1:30.11 min – BMW M5
1:33.55 min – BMW M550d xDrive

Verdict:

The diesel M won because of its comfort and fine-tuning: great balance between sportiness and everyday usability. Less costs. The M5 is a first-class sport saloon.

Tell us below which one of the two vehicles you found as being a more compelling product.

[Source: Autobild | Analysis and translation by “DeDe” of Germancarforum]

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