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Recharge Wrap-up: Audi R18 e-tron Quattro wins WEC opener, Toyota Mirai goes to DC

The Audi R18 e-tron Quattro has won the World Endurance Championship season opener at Silverstone. Drivers Marcel Fassler, Andre Lotterer and Benoit Treluyer piloted the number 7 hybrid racecar to a hard-fought win in the six-hour UK race. "This victory is a dream start of the season and a great reward for the whole squad for the hard work last winter," says Audi Motorsport boss Dr. Wolfgang Ullrich, congratulating the team. Audi's second R18 took fifth place in the race after a couple of unscheduled pit stops ate up precious time. Read more in the press release from Audi, below. Mini and Spanish designer Jaime Hayon are presenting new versions of the Mini Citysurfer electric scooter concept at Salone del Mobile in Milan, Italy. The installation, called "Urban Perspectives" depicts an idea of the future of urban mobility. The imaginary living space houses two examples of the Citysurfer concept designed by Hayon. The first is painted to resemble blue and while porcelain, with dots and stripes to give it an upbeat look. The second uses more upscale materials like anodized metal, copper and leather to blend modern and classical elements. The foldable Citysurfer scooter can travel 10 to 15 miles on a charge, and is designed fit and charge inside the trunk of a Mini Cooper. Read more from Mini. Tesla has announced the locations of its first Superchargers in Australia. It will install eight charging booths at the Goulburn Visitor's Centre, about 120 miles southwest of Sydney. The Goulburn superchargers will be powered by renewable energy. Tesla plans to install a network of Superchargers in cities along the route connecting the Sunshine Coast north of Brisbane south to Melbourne. Read more at Clean Technica. The Toyota Mirai will be on display at the National Mall in Washington DC to celebrate the 45th anniversary of Earth Day. Toyota is a sponsor of Global Citizen 2015 Earth Day from April 17 to 19, which will include speakers, musical performances and, of course, Toyota's new hydrogen fuel cell car. "Earth Day 2015 is a great platform to educate the public about hydrogen fuel cell technology and the potential of hydrogen as a future fuel," says Toyota's Bob Carter. Also in April, Toyota will continue to enlighten the public about the Mirai and hydrogen technology in Union Square Park in New York on April 19, and at Waterkeeper Alliance's "Keep it Clean" comedy event in Los Angeles on April 22. Read more from Toyota.

LA Design Challenge invokes biology for 2025 concepts [w/poll]

Participants in the annual LA Design Challenge always manage to come up with edgy, wacky designs for future vehicles, but with a theme of "Biomimicry and Mobility: 2025" this year's crop of cars might be the quirkiest we've ever seen. As usual, automotive designers from around the world participated in this year's competition, and all the designs will all be unveiled next week during the LA Auto Show with a winner being announced on November 21.
Chinese automakers made a strong showing with Qoros, SAIC Motor, JAC Motors (the company responsible for the Ford F-150 clone) and Changfeng all bringing interesting takes on the biology, human intelligence and sustainability theme. One of the more innovative ideas among these automakers is the Qoros Silk Road System allows autonomous vehicles to drive in packs similar to how ants travel. Speaking of ants, the SAIC Motor Mobiliant (shown above) gets its design from the shape of an ant's body, and, like the insect, it can climb building acting as a personal elevator as well. The JAC Motors design also merges vehicle and building design, while the Changfeng LaBrea inspired by the design of muscle fibers.
Other entrants include Subaru and US-based design teams for BMW, Toyota and Mazda. BMW's duo of concepts mimic plant and animal life. The LA Subways concept acts as a submersible, single-person vehicle to take advantage of the LA river, with a shape similar to an Ocean Sunfish. The Sustainable Efficient Exploratory Device (SEED) imitates the shape of a seed pod, and uses propulsion methods inspired by a shark, dragonfly and a water bug. Mazda's Auto Adapt might be the most car-like concept of the bunch, while the Subaru Suba-Roo and the Calty-designed, Toyota e-grus are the most mind-blowingly awesome.

Toyota to buck engine downsizing trend, may go larger and turbo-free

Turbocharging isn't really Toyota's specialty, and the Japanese automaker isn't being shy about acknowledging it. Koei Saga, a senior managing officer in charge of drivetrain research and development, says that eschewing turbos and increasing displacement of engines using the Atkinson cycle can produce better power gains without sacrificing fuel economy, Automotive News reports.
Toyota is investing heavily in larger-displacement Atkinson-cycle engines in addition to turbocharged engines, but Saga doesn't think the automaker will use turbocharging across many product lines. He apparently remains unconvinced that the technology "makes the world better."
In Toyota's eyes then, Atkinson cycle engines do make the world better, and here's how. Their pistons complete four processes - intake, compression, power and exhaust - in one revolution of the crankshaft, and the power stroke is longer than the compression stroke. Traditional Otto cycle engines require two crankshaft revolutions to accomplish those same four operations and have equal-length compression and power strokes. Atkinson cycle engines are more efficient, but less power dense, though increasing displacement can offset that shortfall.