Interesting article.

http://www.technoride.com/2008/03/bmw_d ... n_econ.php

Isn't Jeep working in a simliar direction?

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2006 Libery Sport CRD, Lt Kakhi, nicely equipped
*****GDE Hot Tune at 38,879 miles
*****Stock TC.....for the time being!!

I don't think it was a hybrid was it?

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Ryan
2006 Ford F-250 PSD CC FX4
**GONE**
2005 Jeep Liberty CRD
SAMCO Hoses//GDE Tune//PML Trans Pan//TransGo HD Shift Kit//MBRP Exhaust

1986 2R Mustang SVO

The BMW isn't a true diesel hybrid. I just has regenerative brakes.

Still an interesting, though un-scientific, test. Thanks for sharing!

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_______________________DogDomain_______________________

Here are the top 25 I believe mpg cars in Europe (you will notice only 1 petrol and it is a hybrid):

http://www.bovinebazaar.com/deisel.htm

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Founder of L.O.S.T.
2006 CRD Sport
Mods: GDE Hot Tune w/ 364#@2000rpm/Air Box /3" Str8 Exhaust/ASFIR Alum Skids/245-75R-16 Cooper STT PRO/OME LIFT w/Clevis & 4 Spring Isos/AirTabs/Rigid 10" S2 LED/4xGuard Ctr Matrix Bumper
Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph

The Prius doesn't do well on the highway. Note that it's EPA sticker is higher for city driving. That is due to two reasons, lack of engine stop/start out of city driving, and loss of electrical power efficiency at higher road speeds.

The GM/Chrysler/Benz/BMW two mode hybrids (only the GM is in production yet - Chrysler is following soon) swap the function of the drive and generator motors at highway speeds to minimize electrical losses. They end up almost even for highway / city driving fuel economy.

An excellent description of how the Prius system works can be found here

http://eahart.com/prius/psd/

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2005 CRD Limited Flame Red w/ Renegade rock rails & light bar, AirLift 1000. 225/75R16 MT/R's on cheap black steel wheels, dual MOPAR subwoofers, Ipod kit & seat covers, Samco hoses - totaled and gone. 2008 WK Laredo 3.0L diesel - AirLift 1000, wife won't let me mess with it much. 2013 JK Sahara on order.