09 Mercedes-benz C-class 4 Door Sedan 3.0l Sport, Leather, Sunroof on 2040-cars

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Recharge Wrap-up: Houston's bus revival, autonomous trucks on the Autobahn

A documentary shows how Houston, Texas significantly improved its outdated bus system. Called High Frequency: Why Houston is Back on the Bus, the short film describes how the city reimagined its bus system to become more efficient, more useful and more popular. Despite some opposition, the change has proven to be effective, with bus ridership up eight percent in three months, and light rail ridership up due to complementary bus routes. See the video above, and read more at CityLab. Automakers sent autonomous semi trucks on the German Autobahn as part of the European Truck Platooning Challenge of 2016. Mercedes-Benz, Volvo and Scania, among other groups, sent platoons of trucks between Stuttgart, Germany, and Rotterdam, Holland. In Mercedes's platoon of three trucks, the lead truck was fitted with lasers and other sensors to guide the convoy down the road. The two following trucks relied on vehicle-to-vehicle communication to trail 50 feet behind the lead, making room for cars to come between them and closing the gaps when able. The close following distance provides fuel economy gains of up to 10 percent in the rearward trucks on account of the reduction in drag. Read more at Hybrid Cars. Renault has reduced NOx emissions in its Euro 6b diesel vehicles in real world driving conditions. By improving its exhaust gas recirculation systems and NOx traps, nitrogen oxide emissions are cut in half on average, under certain driving conditions. The improvements will be included in vehicles leaving the factory beginning in July of 2016. Beginning in October, owners of Renault Euro 6b diesels can have the modifications added to their cars for free. Read more from Renault. Tata Technologies is creating an innovation lab in California to partner with EV technology companies. Having a tech center in California allows Tata to work on technologies that will largely be deployed in the company's main market of Asia. "Today, we are partnering with companies and startups who have aspirations to sell in China, but a lot of what they do is in California," says Samir Yajnik of Tata Technologies. Read more from The Economic Times. BMW's i Ventures is investing in mobility-as-a-service software provider RideCell. RideCell provides technology for services such as carsharing, ridesharing and other transit services. "The convergence of transportation trends in cities is of key importance to BMW," says Ulrich Quay, head of BMW i Ventures.

Mercedes plotting E-Class Maybach, next A-Class for the US?

Mercedes-Benz has opened 2015 by hinting at a host of new products. Dieter Zetsche nudged the idea that there'll be a Maybach-branded SUV. AMG chief Tobias Moers told Motor Trend that "We want to be seen by the public on the same level as the other sports car maker in Germany" when asked if his crew was working on a car to rival the Porsche 918 Spyder. That and a few other tidbits have people thinking that we'll eventually see some sort of celestial AMG supercar. The latest handful of hints came from Mercedes USA CEO Steve Cannon during an interview on the marque's move to Atlanta. Cannon told Automotive News that we'd "see more from the Maybach brand," leaving the impression that there "could" be an E-Class draped in the superluxury trim. If such came to pass, there's plenty of pricing room between the E and the S-Class to slot a higher trim in. The top non-AMG E-Class starts at $62,350, the S-Class opens the bidding at $94,400. Even if you slapped the E-Class with the $23,000 premium it takes to make an S600 a Maybach S600, you've still got plenty of breathing room between the midsized and full-sized sedans. At the antipodal end, Cannon told AN that we could get a front-wheel-drive Mercedes smaller than anything here right now. That leaves the A-Class, since we've already got the B-Class. Getting the next-gen A-Class here would help with CAFE numbers, and since it will be built in the new factory in Aguascalientes, Mexico it won't have far to travel to get here. We're told it won't be like the current car, however; Cannon said, "The A-Class will change from what you have seen and from what you are used to." We hope that's a good thing, because we really like the current car. Related Video:

Mercedes-AMG to phase out 5.5-liter V8 after next year [UPDATE]

UPDATE: A previous version of this story indicated that AMG's 6.0-liter twin-turbo V12 was still mated to a five-speed automatic transmission, however the latest models (including the S65 AMG sedan and coupe, SL65 roadster and G65 sport-ute are equipped with the newer seven-speed unit. Mercedes also reached out to point out that the 5.5-liter engine will be phased out gradually, not overnight. There's a lot to love about AMG's 5.5-liter twin-turbo V8. It produces as much as 577 horsepower and 590 pound-feet of torque, and delivers blistering performance to even the heaviest of vehicles. But try not to get too attached, because like its 6.2-liter, naturally aspirated predecessor, it's not long for this world. The latest word comes from Autocar, which reports that Mercedes will release the last applications for the 5.5 biturbo within these next two calendar years in the new GLE63 AMG and upcoming S63 AMG convertible. After that, even though it was only introduced in 2011, it will be phased out. Fortunately Affalterbach has a worthwhile successor already in place in the 4.0-liter twin-turbo V8 from the Mercedes-AMG GT. The smaller powerplant, already in store for the new C63, is already producing 503 hp and 479 lb-ft in S spec. That's still shy of the larger unit's output, but where the 5.5 is nearing the end of its production cycle, the 4.0 is just starting out. Of course the 4.0-liter biturbo isn't the only engine AMG is making these days. Smaller models (based on the front-drive platform) employ the 45-designation, high-output 2.0-liter turbo four. Models at the very top of the lineup, however, use a 6.0-liter twin-turbo V12 that may be a dinosaur, but with 621 hp and 738 lb-ft of torque on tap, still can't be beat.