F10 launches March/April 2010 in Germany

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06-15-2009, 08:07 AM

#71

sdg1871

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Originally Posted by lawguy' post='912080' date='Jun 15 2009, 11:41 AM

I tend to agree, however, its too early to know for sure.

Perhaps I am lucky that my lease ends in time to get one of the last e60s!

You will probably get a terrific deal if you get an E60 while BMW is trying to clear them out to make room for the F10s. That's how a got a steal on my prior BMW, the 2003 E39 540i Sport.

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06-15-2009, 04:52 PM

#72

pennetta

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Originally Posted by E60714' post='902518' date='Jun 6 2009, 09:48 AM

Just throwing it out there, but doesn't Porsche have something that keeps the turbo spooling lightly when the car is idle at a stoplight or something, to prevent turbo lag?

The single purpose of dual turbos is reduced turbo lag while still getting the volume of air that a single larger turbo can generate. Think of it as if you were blowing air on a small kids pinwheel verses blowing air on a larger pinwheel. The smaller one spins up faster. The pinwheel is half of the turbo charger, the other half is the compressor.
BMW uses parallel turbos, I think Porsche uses sequential turbos and uses a smaller primary and larger secondary for a further increase in maximum output.