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Click above for live shots of the Golf TDI Hybrid from Geneva

When Saab debuted the 9-X BioHybrid concept at the recent Geneva Motor Show, aerodynamics was a big part of the equation. The compact 9-X has a smooth, rounded nose, a raked back wrap-around windshield and a downward sloping roof. To help reduce the drag at the back end of the short body, a spoiler that wraps around the roof extends backward up to four inches. A new video featuring some of the designers talking about the aero work that they did has just been posted on the GMnext web site. You ca

Fiat showed a low emissions and low fuel consumption concept version of their tiny 500 at the Geneva Motor Show called the 500 Aria. The Aria is equipped with Fiat's 1.3L MultiJet diesel and the company's Dualogic transmission. The powertrain is topped off with an automatic start-stop system. The Dualogic transmission is an automated manual transmission that can shift automatically or the driver can determine when to shift. The clutch activation duties are always handled automatically. The full

Mercedes has been working on putting bio-products into its cars for years, since well before AutoblogGreen got started. The company hasn't really been making any sort of announcements about its progress. Hence the lack of coverage of ACO here on ABG.

For a time in the mid to late 1980s following the second mid-East oil shock, turbochargers were all the rage. Carmakers were dealing with trying to meet the first round of CAFE requirements and new emissions standards. That meant downsized engines and turbos helped them recover some lost power. Unfortunately in those days engine management systems were extremely primitive and carburetors were still delivering fuel on most engines. Eventually, they switched to fuel injection and electronics got m

The Saab 9-X BioHybrid concept that debuted in Geneva this week has been picked as the Best Concept in show by the crew at AutoWeek. The 9-X is a vision for a new small Saab coupe to slot in under the 9-3 based on the next generation of GM's Global Compact Car platform. Two years ago Saab won the same award at Geneva for their Aero-X concept. The 9-X has a 200hp 1.4L flex-fuel four cylinder engine paired up with GM's next generation mild hybrid system. A production 9-1 based on this design is hi

The Geneva Motor Show this week was riddled with diesel hybrid concepts from several manufacturers including Mercedes-Benz, BMW and Volkswagen. All of those systems seem destined for production in the next couple of years, particularly the VW Golf TDI hybrid. One company that won't be joining that party is Toyota. Speaking to Automotive News at the Geneva Motor Show this week, Toyota President Katsuaki Watanabe said the hybrid pioneer had no plans to introduce any diesel hybrids.

Pininfarina Sintesi, the Th!nk Ox, the KTM X-Bow, the Audi R8 TDI Le Mans, the Toyota iQ, the Rinspeed sQuba, the John Cooper Works Mini (and Clubman), the Morgan LifeCar, Land Rover LRX in black, the Mercedes BlueEFFICIENCY C-Class and Vision GLK BlueTec hybrid, the Opel Meriva, the VW Sharan Bluemotion, the BMW Vision EfficientDynamics, the VW Passat EcoFuel, the Mila Alpin, the Saab 9-1X Biohybrid and the Hyundai i-mode.

Diesel hybrids are popping up everywhere in Geneva this week from Volkswagen to Mercedes-Benz to BMW. One notable exception is Toyota. The hybrid pioneer has never shown a diesel hybrid and according to Katsuaki Watanabe, the company's president they have no plans to offer one. The problem lies in the fact that diesel engines are inherently more expensive than gasoline units and adding in the cost of a hybrid system would make them uncompetitive in terms of cost. Interestingly, most of the diese

click for high-resolution gallery of the HED 5 i mode

Green has long been a color associated with Bentley going back to their Le Mans victories in the 1920s. In those days - before race cars became rolling billboards - they were painted in colors specific to their countries of origin, with British cars running in green. These days however, going green means something very different. With limits on carbon dioxide emissions looming in Europe and new fuel economy standards in the U.S., Bentley CEO Franz-Josef Paefgen made a major announcement at the G

click the Toyota iQ for high res gallery