1987 Pontiac Gran Prix. on 2040-cars

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Vitruvian Energy crowdfunding to make EEB, a trashy biofuel

When sewage is treated at a wastewater treatment facility, biosolids are the byproduct. After being separated from the water, biosolids are usually sent to a landfill or incinerated. That doesn't mean that they're without value, however. Vitruvian Energy has created a process to make a usable fuel out of this human waste product, and while the source is pretty gross, it is undeniably abundant, and the results are much cleaner. EEB can be made for less than $4 a gallon. In a process that Vitruvian Energy claims is energy efficient, biosolids are femented and introduced to a type of bacteria to create PHA plastic. Reacting the PHA with ethanol creates the ethyl-3-ethoxybutyrate (EEB) biofuel. Vitruvian says EEB can be blended up to 20 percent with gasoline or diesel without any engine modifications. This lowers the carbon footprint of the fuel it's blended into, and serves to oxygenate diesel, leading to fewer harmful emissions. EEB can also be made using other organic waste products, such as corn stover, rice straw and distillers grains. EEB can be made for less than $4 a gallon and isn't subject to the maddening market fluctuations and international politics of fossil fuels. Furthermore, EEB's carbon footprint is 70 percent less than that of fossil fuels. Vitruvian also sees potential for EEB to be used on its own to power vehicles or burned to produce electricity for the grid. So far, Vitruvian Energy has used grants from the California Energy Commission and National Science Foundation to develop EEB, and has tested the fuel in a Pontiac Solstice at Oak Ridge National Laboratory. Now, Vitruvian is wants to test EEB on a larger scale in the real world in order to prove EEB's viability to interested parties in the wastewater treatment industry. In an Indiegogo crowdfunding campaign, Vitruvian Energy hopes to raise $200,000 to build a prototype EEB production line and to run a test vehicle for a year on an EEB-diesel blend on the streets of Seattle. Donors can score some interesting perks such as shirts and bumper stickers that say "Get Clean with Poopaline." Learn more about EEB in the video and press release below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Junkyard Gem: 2007 Pontiac G6 GT Convertible

GM's Pontiac Division sold its first convertibles during the 1927 model year (just a year after the division's creation), then proceeded to offer memorable drop-tops for most of the following 83 years. The best-selling convertible to bear Pontiac badges during our current century was the retractable-hardtop-equipped G6, available from the G6's introduction in 2006 through the second-to-last model year of 2009 (the Sunfire convertible was available just through 2000, while the Firebird convertible vanished with the demise of the slow-selling Firebird itself after 2002). Here's one of those G6 GT convertibles, found in a Denver-region boneyard after a crash ended its driving career. Mashed right front, popped airbags. This sort of damage might have been worth repairing in 2009, but not today. The 2007 G6 was available as a coupe, sedan, or convertible. All the convertibles had the GT trim level and the 3.5-liter V6 and its 224 horsepower. The MSRP on this car was $28,750 (about $42,325 in 2022 dollars), making it the most expensive G6. The power hardtop roof folded up into the trunk, leaving 1.8 cubic feet of trunk storage space with the top down. This Karmann-designed roof system made the interior much quieter than that of a traditional soft-top convertible. All G6s were built at Orion Assembly in Michigan, where Chevy Bolts are born today. The G6 was built through the 2010 model year, making it one of the very last Pontiac models (the Vibe also made it to 2010, though it was really a Toyota Matrix). In hindsight, 2007 turned out to be an ominous year for GM. 

Motorweek looks back at the Pontiac Aztek

The Pontiac Aztek has earned a position as this generation's ultimate, automotive punchline. Even other execrable models like the Yugo or Mustang II probably get more respect these days just out of their sheer quirkiness, but the Aztek remains a joke. Fortify your mind for what's coming, though, because the much-maligned Pontiac might not be quite so atrocious, at least according to MotorWeek's latest Retro Review video. MotorWeek calls the Aztek, "GM's first true crossover vehicle," and it's amazing to think of the hated model as a progenitor of one of the most popular segments today. While admitting that the looks are polarizing, John Davis and company actually come away pleased with the Aztek's utility. They praise that there's a ton of room in the back, and the interior is packed with useful features like a removable cooler in the center console and radio controls in a cargo area. The show is even impressed with how the Pontiac drives and throws around accolades like "nimble" and "pleasant." After seeing the Aztek leading the pack on lists of the worst vehicles of all time for years, listening to it get such effusive praise is actually quite jarring. Could we all be so wrong? No, there's absolutely no debate that this is still a hideous automobile. However, MotorWeek asserts a complete reversal of the generally perceived wisdom about the early CUV. While unexpected, thinking about such an abhorred model in a different way is a cool experience. Check out the video for a different take on the Aztek.