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In the fuel economy and future tech debate, the hybrid vs. diesel vs. hydrogen fuel cells vs. smaller cars and smaller engines always provokes a fair bit of discussion among Autoblog commentators. At this point, no one yet knows what's going to win since nobody knows how the volatile mix of products......

Robert Zubrin thinks so. Zubrin is an aerospace engineer and long-time advocate of manned missions to Mars. While going to Mars is a highly dubious proposition given the issues we need to deal with on our planet right now, making all gasoline engines flex-fuel capable as Zubrin promotes in his new b......

Click images for photo galleryWith favorable tax incentives for biofuel-powered vehicles popping up across Europe, European manufacturers are making moves to take advantage of them. Renault recently launched its BioEthanol Megane hatchback, and now Citroën has unveiled is entry, the C4 BioFlex, whi......

Touted as a means to give V8-like horsepower with V6 fuel economy, the TwinForce V6 at this year's Detroit Auto Show stands as one of Ford's biggest announcements so far. Started with the Duratec 35 as a foundation, the engine's combination of turbocharging and direct injection yields a claimed 415 ......

Autoblog reader Josh sent us in a tip about Ford's new "Innovations" site, a testament to the company's investments in alternative fuels, safety, design and technology. So far, the site's only active offering is the alternative fuels area, where it boasts Ford's leadership in the development of vehi......

In a wide-ranging announcement in Tokyo of programs to develop and market environmental technologies and environmentally-friendly vehicles, Toyota Motor Corporation pledged Tuesday to double the number of hybrid models in its product line in the next five years.The company also said it is pushing ah......

Senior researchers from automakers around the world agree that internal combustion engines will dominate the automotive market for decades to come, even though hydrogen fuel cells are becoming an attractive replacement technology.Volkswagen's Wolfgang Steiger predicted that fuel cell cars will not r......

May new vehicle sales in Brazil were up 25 percent year-over-year, but the market share of flex-fuel vehicles fell for the second month in a row, to a mere 76.3 percent of the total.The sale of flex-fuel cars fell a fraction of a percent as ethanol prices rose, but the next sugar cane harvest is und......

The Center for American Progress, which bills itself as a nonpartisan organization (we'll let our readers form their own opinion), has kicked off a campaign to Kick the Oil Habit. Academy Award winner Robert Redford was given a spot on CNN.com's front page to speak his mind about the project, which ......

As automakers blitz Washington with their answers to the U.S. dependency on increasingly expensive foreign oil, it was Toyota's turn to step up to the plate Wednesday. Speaking to the House Energy and Commerce subcommittee, Toyota's advanced technology manager, William Reinert, focused on his compan......