Quote:
Originally Posted by SkipSauls
You are probably correct for Europe, but not for the USA. Everything points to the USA getting the M57 for the 35d, with the dual inline turbos, single air intake, 6-speed transmission, etc. The 40d gets the N57 with the newer "twin-scroll" turbos, dual air intakes, 8-speed, and so on. It's not a direct swap, although that's not saying it can't be done. The question may be more of whether they will spend the money to have the new engine and transmission certified for the USA, especially with the next generation X5 due in a couple of years.
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I say they will spend the money, as the engine is a natural for not only the X5, but the 5 Series and 7 Series. BMW tends to do engine changes mid-model (now), not with a new body style.