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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A documentary shows how Houston, Texas significantly improved its outdated bus system.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.

2015 BMW M3 Sedan

BMW's all-new M3 Sedan is dynamically nearly identical to its two-door M4 Coupe sibling: a stopwatch reveals that both are sub-four-second cars to 60 miles per hour, a racetrack proves that the mechanical twins are equally as adept on a road course and a full afternoon of driving on public roads demonstrates that each possesses talented everyday adaptability.
Yet after driving both BMW models back-to-back over two full days in Portugal, it's clear there are a few noticeable differences, both objective and subjective, that don't require instrument testing to reveal. All it takes is a few hours behind the wheel of both cars to conclude that one is slightly more agile, and the other a bit more twitchy. One has better outward visibility, while its counterpart is unquestionably more convenient.
It is the little things - subtleties attained through seat-of-the-pants observations - that eventually allow me to choose a favorite.

Two-box BMW X2 breaks from X4 and X6

Our first batch of BMW X2 spy photos has revealed something interesting about the German brand's newest compact CUV. Unlike the even-numbered X cars – the X4 and X6 – these shots show a traditional two-box CUV, rather than the plunging roofline of those lifted, four-door coupes. With a two-box design then, what is there to differentiate the X2 from the X1? For a start, while this is a similar to the X1 shots we've seen, the D-pillar and rear window are significantly more aggressive without compromising the traditional CUV design. That design backs up our spies, who claim the X2 will be a sportier version of the upcoming X1. But while the look will be similar, expect the two cars to share powerplants and drivetrains. That means the four-cylinder B48, used in both the Mini Cooper S and other BMW products, will be on offer at launch. That engine will be joined by turbocharged triples within the first 12 months on the market. An M Performance model will also be offered, boosting the B48's output from around 230 horsepower to an even 300 ponies. That'd put the X2 on a collision course with the Audi RS Q3, although it won't be quite as angry as the Mercedes-Benz GLA45 AMG. While the X2 could debut as early as the 2016 Geneva Motor Show, our spies claim the X2 won't hit dealerships until the second half of 2017. Check out our array of spy images up top, and pay particular attention to the D-pillar and rear window, to see the major differences between the X2 and X1.