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Old 08-18-2006, 04:08 PM
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Jeff. that's the EPA published figures for the E60 M5 also but in REAL WOLRD, it's a lot worst. try 8-10mpg COMBINED!

Quote:
Originally Posted by JCL
I think you will find that the EPA test procedures have not changed.

The test in use now has been around for decades, and for the last twenty years or so has had an arbitrary 'fudge factor' applied to make it more realistic (22% reduction in EPA raw highway mileage data, less for city)

The test is so far off base that turning the air conditioner on as is being proposed will have next to no effect. They need to move to a more realistic driving cycle (maybe more than 48 mph as is used now for highway), and simulate the typical idling time for congestion.

All that aside, the M5 real-world fuel consumption is in that range, so why would the new M3 be any different? Isn't it 80% of the V10 from the M5?
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