Quote:
Originally Posted by southlight
Agreed about 1), that's a typo/error on BMW's part.
2) is correct, the M5 does return a better mileage in the EU cycle than the 550i. The M5 has e.g. Valvetronic and auto start/stop over the 550i. Real world fuel consumption might be a different story though.
Best regards,
south
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My bad. I was under impression that 550 4.4 is also valvetronic. If that's the case the difference should be same as between N54 (no valvetronic) and N55 engine (valvetronic)...~2mpg diff.