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Singer Porsche, Koenigsegg, NSX: Leno's life doesn't suck

Jay Leno had quite a productive trip this year during Monterey Car Week. Not only did he get to pal around with Ian Callum and check out the Pebble Beach Concours d'Elegance, but the denim-clad comedian also headed to The Quail to talk to some prominent figures in the modern sports car scene. Capping off the fun, he got to take a drive in a Mercedes-AMG GT S, too Perhaps the highlight of this show is a nearly 10-minute interview with Christian von Koenigsegg. The founder of the Swedish hypercar company digs deep into the Agera One:1's engineering details, relating interesting facts about the aerodynamics and transmission. In addition, Leno chats with Rob Dickenson of Singer about its newly reimagined Porsche 911 Targa, and he gets the latest scoop on the Acura NSX's progress from newly promoted Acura Vice President and General Manager Jon Ikeda. If you like hearing about the nuts and bolts of sports car development, then this video can't be missed. Of course, we were there at Monterey, too, and we pointed our own cameras at some of the amazing machinery, both vintage and modern, at all the various car-focused events of the week. Take a look back at some of our own cool footage in the videos below. Related Video:

Recharge Wrap-up: Cool new Euro VI railroader Unimog, Car2go hearts charity

Mercedes-Benz's mega-cool road-railer Unimog now boasts Euro VI compliance. Used for railroad track maintenance and train shunting work, this diesel-powered Unimog offers about a 90-percent improvement in particulate emissions over the Euro V. The new engine also offers improved efficiency. It provides 231 horsepower, and with eight forward and eight reverse gears, it can travel up to 31 miles per hour in either direction. It also has new in-cabin features that make it easier to use for the driver. Read more about the new road-railer Unimog in the press release below. Carsharing group Car2go has launched a donation feature within its mobile app, called "ride2provide." The feature lets users find "heart cars," which, when used, include a $1 donation to Whole Planet Foundation. The money raised by the ride2provide program goes towards the Whole Planet Foundation's mission of providing microcredit to the poor for creating or expanding home-based businesses. Car2go's ride2provide program started August 4, and runs for 90 days. Learn more in the press release below. China continues to pave the way for more EVs, but some people are still skeptical they'll catch on. Charging station operators will be forgiven some of their electricity fees until 2020, said the National Development and Reform Commission (NDRC). China has already extended tax exemptions on EVs through 2017. The NDRC is also urging local governments to offer subsidies and free charging. Still, the costs involved with installing chargers are keeping many from doing it, and many consumers are hesitant to become early adopters of EVs. Read more at ECNS. car2go Launches "ride2provide" To Help car2go Communities To Work Together To Give Back "ride2provide" To Be Integrated via car2go Mobile App Beginning August 4th car2go To Donate To Whole Planet Foundation® As Program's First Exclusive Charity car2go North America LLC, the fastest-growing global carsharing company, announced that it has launched "ride2provide," a donation feature to be integrated into the car2go mobile app for iPhone and android iOS beginning today, August 4th. The new initiative seeks to help car2go communities across its 15 locations and over 400,000 members in North America to work together in donating to a charitable cause, and will first kick off with a 90-day partnership with Whole Planet Foundation as the program's first exclusive charity.

Mercedes forced to lower MPG ratings on two C300 models *UPDATE

*UPDATE: Donna Boland, manager of corporate communications at Mercedes Benz USA, told AutoblogGreen that the sticker change only applied to around 500 C-Class vehicles on dealer lots, since a new C-Class came out in late August. "About 500 are left in the United States, and we've relabeled them," she said. First Hyundai, then Ford and now Mercedes-Benz. The list of companies that have had to change their vehicles' official EPA fuel economy ratings has just grown by one with the announcement that the 2013 and 2014 C300 4-Matic FFV and PZEV versions need to have their EPA labels adjusted. The changes aren't massive, at most one mile per gallon. The changes aren't massive, at most one mile per gallon, but they are lower than before. The FFV version goes from 20 to 19 mpg in the city while the PZEV drops one mpg across the board from 23/20/29 combined/city/highway) to 22/19/28. The FFV's combined (22) and highway (27) ratings stay the same. Other Mercedes vehicles that were spot checked turned out to have accurate labels. The problem, which is reminiscent of the issues that Ford had with the Total Road Load Horsepower, was that "Mercedes underestimated the impact of aerodynamic drag and tire rolling resistance known as 'road-load,'" the EPA said in a statement you can read below. We have asked Mercedes for more information on the issue but have not yet heard back. We're not sure how many vehicles the EPA is retesting (or asking to be retested), but the agency says that the C300 models were evaluated again by Mercedes "with EPA oversight" and the EPA did its own tests at the National Vehicle and Fuel Emissions Laboratory in Ann Arbor, MI. Christopher Grundler, the director of EPA's Office of Transportation and Air Quality, said that the EPA knows that the changes are minimal, but that, "it is important that our oversight system is producing the correct results because even one MPG matters to consumers." In case you need a primer in the recent history of companies adjusting their EPA numbers, check out this and this. Based on today's news, we won't be surprised to hear more changes are coming. EPA Requires Mercedes-Benz to Correct Fuel Economy Labels for Two C300 4-Matic Vehicles WASHINGTON - The U.S. Environmental Protection Agency (EPA) is revising estimates for two 2013/2014 Mercedes C300 4-matic vehicles, the FFV and PZEV, to ensure consumers are given accurate fuel economy values.