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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A documentary shows how Houston, Texas significantly improved its outdated bus system.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-AMG GT and C63 to serve as F1 safety, medical cars

Mercedes has spent nearly 20 years providing the safety and medical cars for Formula 1, so it was hardly a shock when the company announced that the new Mercedes-AMG GT and C63 AMG S Estate would serve as ushers in the F1 circus. The two turbocharged monsters replace the old SLS AMG safety car and C63 AMG wagon medical car, which have served in one trim or another since 2010 and 2008, respectively. The biggest change for either car is, of course, the lightbar. It's been mounted atop a carbon-fiber hoop on the AMG GT that Mercedes says optimizes airflow to that big rear wing. Meanwhile, the location of the lights was confirmed via wind tunnel testing. In the cockpit, two iPads allow the AMG GT's passenger, fuel analyst Peter Tibbetts, to monitor the race's world feed while also keeping an eye on race data. The tablets stay connected via an in-car, wireless internet connection. Changes for the C63 S wagon are less extensive. It gets a lightbar and the usual signaling systems in the headlights and taillights, while the cargo compartment includes both a respirator and a defibrillator, to manage more serious medical emergencies. As with the AMG GT, the C63 is finished in F1's traditional silver safety/medical car livery. Beyond these changes, both vehicles are just as potent as those that can be purchased at dealers. Both cars feature a 4.0-liter, 510-horsepower, twin-turbocharged V8, while a seven-speed AMG Speedshift transmission dispatches the grunt with lightning-quick shifts. So equipped, the AMG GT will hit 60 in 3.8 seconds and the C63 can get there in 4.1 seconds. Check out the full gallery of both cars, decked out in their F1 liveries, available up top. Related Video: Mercedes-AMG GT S and C 63 S in action for the 2015 Formula 1® season: Maximum safety, maximum performance Affalterbach, Mar 06, 2015 Baptism of fire on the race track: The GT S and the C 63 S – the new high-performance cars from Mercedes-AMG - provide for maximum safety in the 2015 FIA Formula One World Championship™. At the first Grand Prix in Melbourne, Australia (12 to 15 March 2015) the GT S will debut on the race track as the Official Safety Car of the FIA Formula One World Championship™. As the Official Medical Car of the FIA Formula One World Championship™, the C 63 S Estate will be on hand to provide fast emergency medical care. Mercedes-AMG has been active continuously at the pinnacle of motorsport since 1996.

Rare Isdera Imperator 108i flexes its considerable muscles

The Isdera Imperator 108i is a remarkably rare supercar from the late 80s and early 90s. Born of a Mercedes-Benz concept car, it's powered by a range of AMG-developed V8s, with five to six liters of displacement, depending on the engine. The example shown here, lapping the legendary Spa-Francorchamps circuit, features the most potent 6.0-liter V8 available. And rather than just being driven about on a perfectly clean racing line, it's freaking power sliding!
Yes, there's something eternally childlike about a wedge-shaped supercar from our formative years being flung about a Belgian racetrack. Adding to the appeal is the Imperator's stumpy, periscopic rear mirror, sticking out of the roof. Even after being out of production for 20 years, this is still a wild, wild car and we'd happily snap up the opportunity pilot one of the 36 Isderas that were built. Take a look below for the full video from Spa.