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Efficiency is a large stumbling block if you're looking for a way to replace gasoline. It's pretty hard to better such an exceptional fuel, and several alternatives show promise but are nagged by inefficiencies or cost, and usually both. Nanotech to the rescue; it may soon be possible to produce you......

After a controversial two-year run, the Canadian government has announced their ecoAUTO rebate program will be ended next year. The ecoAUTO plan offered a $1000 to $2000 CDN rebate to owners of new cars that consumed gas at a rate less than 6.5 l/100 km. Although the ambitious plan sounded like an ......

In yet another move demonstrating that Porsche is capitulating to the greener crowd, an industry newsletter is reporting that the German automaker's executives have overcome their long-time reservations about diesel powerplants and are considering such a vehicle for their lineup by 2010.Reportedly, ......

Toyota has an ambitious goal to begin selling one million hybrids per year by early next decade, and the Japanese automaker's home market Crown sedan reveals part of Toyota's strategy. The Crown Hybrid will only be available on the top line model, which also features industry firsts such as an LCD ......

It's the mayor of London in one corner and Porsche, the maker of thoroughbred sports cars, in the other. In the green trunks, Mayor Ken Livingstone has decreed that a $50 daily tax shall be levied against all gas-guzzling, emission-spewing vehicles that drive through his city beginning in October. ......

Britain's Automobile Association has found another bump in the road to environmental kindness: speed bumps and really low speed limits. They took a car that got 58-mpg running a constant 30-MPH, and ran it over speedbumps at the Millbrook Proving Ground, slowing down and speeding up for each bump. W......

The European Parliament has called for Formula One to adopt more environmentally-friendly engine alternatives, and the FIA seems to be all for it.The CARS 21 report, passed with 607 EU legislators in favor, 76 against and 14 abstentions, praised the FIA's actions to make F1 greener, but called on th......

Switching a racing series to ethanol? Smart. Shipping the ethanol around the world to show how green that racing series is? Less so.A1GP has announced that its upcoming race in New Zealand will mark the inauguration of the series' switch to E30 Hiperflo ethanol-gasoline blend, which, as organizers p......

We've been hearing about Honda's upcoming clean diesel for quite some time now, and the automaker was kind enough to show a cutaway of the i-DTEC clean diesel for us at the 2008 Detroit Auto Show. Expect to see the engine appear first in an upcoming and unnamed Acura product around 2009 - but while ......

We've been hearing about Honda's upcoming clean diesel for quite some time now, and the automaker was kind enough to show a cutaway of the i-DTEC clean diesel for us at the 2008 Detroit Auto Show. Expect to see the engine appear first in an upcoming and unnamed Acura product around 2009 - but while ......