UN Report Proposes Framework for Considering Bioenergy Sustainability Issues
ARB Posts Draft Technical Analysis for California’s Low Carbon Fuel Standard; Ambitious, But Achievable

BMW Twin Turbo Takes International Engine of the Year Award; Toyota Wins Best Fuel Economy Category

BMW’s 3-liter twin turbo (earlier post) was named International Engine of the Year 2007 at the ninth annual International Engine of the Year Awards at Engine Expo in Stuttgart, Germany. BMW won two other category awards for its 2.5-liter inline six and 5-liter V10, in addition to having the twin turbo named Best New Engine.

The 62 automotive journalists from 30 countries who served as judges also named Volkswagen’s 1.4-liter turbocharged and supercharged TSI unit (earlier post) as best in the 1-liter to 1.4-liter class, with its larger sibling, the 2-liter turbo developed by Audi and applied in the Golf GTi and Audi A3, topping the 1.8-liter to 2-liter category.

Toyota meanwhile saw its 1.5-liter hybrid that powers the Prius named Best Fuel Economy engine and its 1-liter 3-cylinder from the Aygo and Yaris take the honors in the Sub 1-liter category. (Earlier post.)

International Engine of the Year Awards 2007: Winners
Best New Engine of 2007 BMW 3-liter Twin-Turbo (335i)
Best Fuel Economy Toyota 1.5-liter Hybrid Synergy Drive (Prius)
Best Performance Engine BMW 5-liter V10 (M5, M6)
Sub 1-liter Toyota 1-liter (Aygo, Yaris, Peugeot 107, Citroën C1)
1-liter to 1.4-liter Volkswagen 1.4-liter TSI Twincharger (Golf, Touran, Jetta)
1.4-liter to 1.8-liter BMW-PSA 1.6-liter Turbo (MINI, Peugeot 207)
1.8-liter to 2-liter Volkswagen 2-liter Turbo (Golf, Audi A3, A6, SEAT Leon, Skoda Octavia)
2-liter to 2.5-liter BMW 2.5-liter (325, 525, X3, Z4)
2.5-liter to 3-liter BMW 3-liter Twin-Turbo (335i)
3-liter to 4-liter Porsche 3.6-liter Turbo (911)
Above 4-liter BMW 5-liter V10 (M5, M6)
International Engine of the Year 2007 BMW 3-liter Twin-Turbo (335i)




The I.C.E. is a marvelous creation, but it is still a smog pump. The larger the displacement the more smog they pump.


There are at least a dozen engine designs than are more efficient than even the best IC piston engine. http://peswiki.com/energy/Directory:Engines Unfortunately, the piston IC engine is entrenched and auto manufacturers are controlled by fat, scared, rich, lazy old men. Birds of a feather... Anyway, I guess fossils in the boardrooms just like fossils fuels. I wonder why… . http://www.ev1.org/gmoil.htm


Mmmm, tasty , 5 litre V10 its just got to be the psychopaths
choice as engine of the year surely !
And I suppose these worthy 62 journalists were flown in
to Suttgart from all over the world to cast their votes!
Can´t wait for the cigarette olympics , anybody know when they
are held !
Where do they get this stuff from,its all very depressing.


Where are the clean diesels?

Notice that most of the awards went to engines which implemented technology that has been the mainstay of clean diesels for at least a decade now: common rail direct injection and/or VGV turbocharging.

My vote would have gone to the Honda's 2.2 CDTI turbodiesel.

But since we're talking gassers here, I'd say the MINI's 1.6 GDI VG Turbo engine is the most significant. If all our cars utilized "right-sized" engines for the task at hand we could reduce vehicle mass significantly and thereby reduce fuel consumption.

Lutz here is your formula for improving your CAFE numbers: Lighter cars enable smaller lighter engines which further enable even lighter cars, etc.

GM, replace your the heavy 3.5 and 3.6 liter V6's with your 2.0 GDI VG turbo Ecotec engine (260hps +260ft-lbs).

Replace your heavy V8's with I-6 2.5-3.0 GDI VG turbos, etc. Get the picture? Make all your heavier vehicles (trucks, SUVs, minivans) clean diesels.

Lutz, it need not cost you $6,000 per vehicle to improve fuel economy!


Look at what BMW's 335i twinturbo I-6 GDI "engine of the year" is capable of: 300bhp and 300ft-lbs torque starting at only 1400rpm! (close to clean diesel torque numbers) All this performance available in a combined 23mpg package. Not bad.

Just for grins and giggles let's compare this to BMW's 330TDI engine. Output: 236bhp -but more importantly a phenomenal 369ft-lbs torque from only 1750rpm!!! But herein lies the beauty of clean-diesel: it delivers a combined 33mpg in the same 3-series platform!

Jump to the other diesel in BMW's 3-series line-up, the 320TDI. Output: a very impressive 204bhp and 295ft-lbs torque from only 2000rpm while delivering a combined 40mpg!!!

How many gassers (to include gas-electric hybrids) can claim that combination of power + torque + fuel efficiency?

Again, I ask, where are clean diesels?


Look at what GM introduced at the Geneva car show:

General Motors Corp. unveiled a new 2.9-liter V-6 turbo-diesel engine that features state-of-the-art injection and combustion technology for low emissions and high performance. The new engine features an electronically controlled variable geometry turbocharger to generate 184 kW/250 hp and 550 Nm/406 lb-ft of torque beginning at 2000 rpm, while providing effective fuel economy and reduced emissions.

Its first production application is scheduled for 2009 in the Europe model Cadillac CTS.

Wow! 250bhp and 406ft-lbs of torque!!! Lutz, a viable solution to your CAFE woes is right under your own nose!


I really think this point needs to be driven home:

GM's 2.9 TDI(single turbo): 250bhp and 406lb-ft torque
BMW's 3.0 TDI(sequential turbos): 236bhp and 369lb-ft torque

Did you guys read that: GM's 2.9 clean diesel out-performs BMW's 3.0 clean diesel. And who says GM can't compete?

Read on:
"The compact dual overhead cam, four-valve V-6 engine belongs to a new GM family of diesel engines, featuring an innovative closed-loop combustion control system designed to meet future emissions standards. The engine can be installed in a longitudinal or transverse layout and can be adapted to a wide range of two- or four-wheel-drive vehicles.

“The V-6 diesel integrates leading technologies and will deliver outstanding performance, fuel economy and low emissions,” said Roger Johansson, GM Powertrain Europe vice president.

The V-6 engine management system enables optimal fuel economy as well as reduced emissions and noise by using a recently developed combustion control technology. Key enablers of the system are high-speed, piezo-resistive cylinder pressure sensors that are integrated within the engine glow plugs. These specialized sensors acquire real-time data from the combustion process, enabling instantaneous fine-tuning of the fuel injection process. In the future, this clean combustion control technology will be introduced in other GM Powertrain diesel engines.

The high-pressure, common-rail system provides up to 2000 bar (29,000 psi) injection pressure. The injectors are quick-firing, piezo-electrically actuated, allowing up to eight injections per engine cycle. The aftertreatment system includes an oxidation catalyst and a particulate filter that are close-coupled to the engine to achieve future emissions standards."

Is this the same GM that Lutz works for?


could it be the old "not invented here" problem

Rafael Seidl

@ DieselHybrid -

I wouldn't get too worked up about this award. It's a commercial honor bestowed by (mostly) European journalists, whose livelihood depends on chummy relations with the European auto industry. This year, both M-B and BMW released turbocharged six-cylinder gasoline engines with spray-guided stratified direct injection plus NOx store catalysts. Obviously, BMW did a better job of schmoozing the press.

If and when a truly "clean" diesel - one that actually meets T2B5 - goes into production, chances are it will receive numerous awards. M-B is widely expected to be the first to crack that hard nut in 2008.

Honda's diesel is really quite good but it's been on the European market for several years now. It was probably out of contention for that reason alone.

GM's new V6 diesel for the European version of the Cadillac STS. It's party piece is its closed combustion system, which is based on expensive real-time in-cylinder pressure measurements via piezo elements in the glow plugs. This is an essential step toward HCCI combustion control, but GM have not gone quite that far just yet. Besides, Cadillac's market share in Europe is minuscule so this innovation is only relevant to the engineering community.


My choice would have been the Toyota 1.4 D-4D which returns 70 odd mpg in the Yaris and Corolla/Auris and has 150 odd lb ft of torque (Merc SLK has what... 300 so you put that in perspective).

But as ppl commented, i think it has to be new engines and this Aluminium unit has been doing service for a while now. Looking fwd to the next version...

The comments to this entry are closed.