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During an online Q&A with Jalopnik readers, Cadillac CEO Johan de Nysschen threw more light on the future of the brand and the CT6. Eventually, the engine bay in the new flagship sedan will boast "a very wide mix of engines, starting with a 2-liter turbo, up to, eventually, a high-performance advanced V-8 turbo."

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New book recounts MPG competition in fascinating detail

In 2007, more than 200 teams set out on an ambitious automotive undertaking. The X Prize Foundation announced it would create a $10-million competition open to anyone who could build a safe, mass-producible car that achieved 100 miles per gallon equivalent. AutoblogGreen followed the competition in real time, but the grueling three-year adventure has now been recounted in fascinating detail by author Jason Fagone in Ingenious, a new book on sale this month.

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One other interesting and timely interview I was offered at this year's Detroit North American International Auto Show was with Don Butler, Cadillac's enthusiastic marketing VP. Why so timely? Because it was right after Cadillac unveiled the production version of its soon-to-come (early 2014) ELR extended-range electric vehicle. Not only is this edgy two-door compact coupe even sexier-looking than Cadillac's slick CTS coupe, it's powered by a slightly upgraded version of the same Voltec series-h

Renault Fluence Z.E. – Click above for high-res image gallery

Given that the traditional four-stroke Otto-cycle engine piston engine only has a thermal efficiency of 25-30 percent, there is clearly still plenty of room for improvement. While most of the green automobile attention in recent years has been focused on electrification, liquid fuels still have about 100 times the energy density of today's best lithium-ion batteries, a difference that probably won't change significantly any time in the near future.

Over the weekend, we heard a story that the Obama Administration "may be adopting" the Better Place model of powering electric cars. We wanted to know more about what this means, exactly, and got the following from Better Place PR:

A little while back, we got our first official peek of the Miles EV highway speed sedan. That picture can now be fleshed out a bit with details on how Miles EV is planning to bring this Chinese-built all-electric car to the US market. Miles EV CEO Kevin Czinger sat down with AutoblogGreen and talked about the branding of this vehicle, who Miles EV thinks the first customers will be, and the estimated 10-year showroom lifespan of this particular model (with variants). More importantly, he gave da

One of the newest cars to drop into the US market is the Smart ForTwo. A decade after its European debut, the two-seat city car finally arrived stateside after several abortive attempts by both its parent company Daimler and independent distributors. This time around Daimler worked with a US distributor set up by serial entrepreneur and race team owner Roger Penske to create SmartUSA. At the LA Auto Show last week we sat down with SmartUSA president David Schembri to discuss the company's first

Following the big change that swept through American politics on Nov. 4, there has been a lot of celebration in a lot of places. Over at the Auto Allliance, the association made up of BMW Group, Chrysler LLC, Ford Motor Company, General Motors, Jaguar Land Rover, Mazda, Mercedes-Benz USA, Mitsubishi Motors, Porsche, Toyota and Volkswagen, president and CEO Dave McCurdy was spending at least some time thinking about what sorts of opportunities and challenges the Obama Administration and a more De

As I wrote on Thursday, one of the more interesting vehicles here at the Alt Car Expo is a one-off home conversion of a 1999 Porsche Boxster called the MIIN-AER car. We wanted to get some more information about this thing, so we talked to Glenn Bell, CEO of Air Fuel Auto. Bell talked about why he's in favor of compressed air - wait, actually

Listen in to a fascinating conversation that took place yesterday on green car politics, featured on the radio show, "Your Call." (KALW, 91.7 FM, San Francisco, CA). The show gave me a chance to discuss some of my research on "The Clean Car Movement," and also featured Meghan Sinott (Organizer for the Car Free Cities Conference in Portland, OR), Michou Olivera (Co-Owner of Luscious Garage, San Francisco), and Russ Heimerich (Spokesman for California Bureau of Automotive Affairs Drive Healthy Cam

In the first two parts of our discussion, Tesla Motors Chairman Elon Musk described how he came to be a part of Tesla Motors and how he influenced the development of the Roadster. It's important to note that he never described himself as the designer or creator of the Roadster. Rather he considers himself the co-architect of the sports car.

Among the readers of this site, one of the cars that elicits a lot of passion is the Tesla Roadster. The battery-powered Roadster and its provenance have elicited a great deal of discussion over the past nine months, in particular since the demotion and ultimately the departure of co-founder Martin Eberhard. This is a complex tale involving passionate entrepreneurs with that all-too-common but in many ways necessary human frailty known as ego. When humans interact, they often see the same result

Madrid, Spain, is currently a very polluted city where 1.8 million vehicles are responsible for 75 percent of the pollutants in the air. Madrid's City Hall has decided that it will switch all its vehicles over to "clean" fuels, that is, they will be all running on electricity, natural gas, biodiesel or ethanol. The city also announced that it will join the BEST (BioEthanol for Sustainable Transport) European project to promote the use of ethanol in cars. Madrid has also worked out agreements wit

When Larry Burns, GM's vice president of R&D and planning, spoke at the opening session of the AFVI expo yesterday morning, he stayed on target to bring GM's message to the conference. Before he stepped onto the stage, we had a chance to sit down with him and ask a few question

As we cover the automotive industry, we run across numerous events which lean, in one way or another, towards our green preferences. Some of these could be very influential on the industry while others are really more for fun. With that in mind, we've compiled a list of our top five favorite upcoming green events for Earth Day. Take a look-see starting with number five (or skip ahead using the list below) and let us know how you feel.

When we were brainstorming ideas for Earth Day posts, we thought about featuring the ten most exciting green cars we wish we could buy today. It turns out that there are at least twice as many green rides on the horizon that we'd really like to have today, so the list has expanded. We'd like to note that this list is far from complete; the green sector of the automotive industry is growing in leaps and bounds. Start here and join us for a guided preview of our future garages or jump ahead by cli