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What does the open patents deal mean for Tesla ... and BMW?

Gift to the world or trade bait? Tesla Motors announced this week it would open its patents for other automakers to use. That has analysts guessing whether the California-based electric-vehicle maker is looking to either swap trade secrets with other automakers or to expand the proverbial pie that represents the plug-in vehicle market. For its part, Tesla says the answer is B. BMW, which is establishing its i sub-brand of plug-in vehicles, would be a natural collaborator with Tesla, Forbes says. In fact, executives from the two companies met in Europe this week. Details were not released, but a BMW spokesman said, "Both companies are strongly committed to the success of electromobility and discussed how to further strengthen the development of electromobility on an international level." While Tesla brings battery technology to the table, BMW offers its carbon-fiber advancements that lighten vehicle-body weight. Those advancements are key to range-extending efforts and could do wonders for Tesla on its journey to help spur technology for the sake of getting more of the general public to accept plug-in technology as a viable first-car option. Then again, Forbes says Tesla, whose investors include Mercedes-Benz parent Daimler and Toyota, may be keeping its best technologies to itself by not patenting certain advancements at all. What's in Tesla's patent pool? uAutoInsurance analyzed Tesla's 249 patents and found that 104 of them related to battery technology, while 28 pertained to recharging activity, which wasn't surprising (about a quarter of those 249 patents couldn't readily be categorized). Tesla also has nine patents related to sunroof technology. The company is based in California, after all.

Recharge Wrap-up: Eigg's renewable energy grid, Wulin City Car EV looks like i3

Scotland's Isle of Eigg's electrical grid relies solely on wind, hydro and solar power. It's the first grid of its kind after switching to renewable energy from noisy, unreliable diesel generators. Scotland's renewable resources are fodder for supporters of independence form the UK, and Eigg is a perfect example of that potential. Besides being a responsible community, it also seems like a lovely place to visit. Read more at Reuters. London Mayor Boris Johnson is calling for incentives for diesel vehicle scrapping. The goal is to improve London's air quality, encourage the purchase of clean vehicles and offset the inconvenience of charging diesel cars to enter the city's proposed Ultra Low Emissions Zone. Read more at Green Car Congress or in the press release below. BMW, Nissan, Renault and Volkswagen are teaming up to create a better EV charging infrastructure in the UK and Ireland. As part of the Trans-European Transport Network (T-ENT) program, the group aims to create extended EV-friendly roadways with the UK Rapid Charge Network, connecting major cities on the islands. Plans for the network include 70 rapid chargers along 684 miles of road. The four manufacturers also want to extend the project to mainland Europe to encourage the adoption of EVs. Read more at Hybrid Cars. Wuling is working on an EV, called City Car, which liberally takes visual cues from the BMW i3. The City Car EV concept is slated to make its debut in November at the Guangzhou Auto Show, while a production version could make its way onto Chinese roads next year. We might have to wait until the debut to know what powers the City Car, as those details haven't been released yet. General Motors is a 43-percent stakeholder in Wuling. Read and see more at Car News China. Taxi customers in New York will enjoy greater payment flexibility with the new interoperability between RideLinQ and Way2ride apps. Now customers will be able to use either app to pay in any of the city's 20,000 green and yellow taxis. There's no need for separate apps for separate cabs, and no need for drivers to install any new equipment. The groups behind the apps hope to expand this functionality to other cities across the country. Read more in the press release below.

Recharge Wrap-up: Batty battery covers, Mercedes at Silvretta, new Hyundai Sonata Hybrid available in 2015

Apparently, Chevrolet Volt battery covers make suitable homes for bats. As part of an Eagle Scout project, Matthew Netherland created 30 bat houses out of scrapped Volt battery covers donated by Chevy. 22 of the bat houses will be set up near hydroelectric dams in Michigan. Each bat house will accommodate 100 bats, and divert the scrapped materials from the landfill. The battery covers also make great nesting boxes for wood ducks, which General Motors has previously set up at its Milford, Michigan Proving Ground. Last weekend was the Silvretta E-Auto Rally, which saw emissions-free vehicles cross the Montafon Mountains in Austria, including cars from Mercedes-Benz. These cars included the B-Class Electric Drive, B-Class F-Cell, SLS AMG Electric Drive and even the Smart Fortwo Electric Drive. Also on hand for the Silvretta Classic Rally was a V8-powered C111, a 1978 Mercedes-Benz 450 SLC and 300 SL Roadster. Read more in the press release, below. BMW has finalized pricing for the i8 in the US at $135,700 (plus $925 in destination charges). In addition to the base price tag, which we've known for a while, BMW Blog has the complete pricing guide with options and packages. Most of the i8 orders were the Pure Impulse World package, which includes various aesthetic upgrades. It also provides membership to the BMW i Pure Impulse Program, which allows you to "to enjoy innovative ideas and trends in a variety of areas, including home styling, culture, gourmet gastronomy, design and many more." Head over to BMW Blog for more information. The new generation of the Hyundai Sonata Hybrid will arrive later than the rest of the model lineup, confirms Car and Driver. While the gas-powered Sonatas get updated now for the 2015 model year, the Hybrid remains unchanged until late this year or early 2015, when it will arrive as a 2016 model. Hyundai is offering a 2015 Sonata Eco edition, but with 28 miles per gallon in the city and 38 mpg highway (32 combined), it's not quite as appealing as the current Sonata Hybrid's 36/40/38 figures. Read more here. In June, average US fuel economy was 25.5 miles per gallon, making it the fifth straight month above 25 mpg, according to University of Michigan. The average window sticker ratings from vehicles sold in June dropped slightly from 25.6 mpg in May. The year started at 24.9 mpg in January, and hasn't dropped below 25 mpg since.