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  • 2013 Motor Trend Car of the Year

    http://autos.yahoo.com/news/2013-mot...-s.html?page=2

    2013 Motor Trend Car of the Year: Tesla Model S

    Motor Trend – 5 hours ago





    The 2013 Motor Trend Car of the Year is one of the quickest American four-doors ever built. It drives like a sports car, eager and agile and instantly responsive. But it's also as smoothly effortless as a Rolls-Royce, can carry almost as much stuff as a Chevy Equinox, and is more efficient than a Toyota Prius. Oh, and it'll sashay up to the valet at a luxury hotel like a supermodel working a Paris catwalk. By any measure, the Tesla Model S is a truly remarkable automobile, perhaps the most accomplished all-new luxury car since the original Lexus LS 400. That's why it's our 2013 Car of the Year.

    Wait. No mention of the astonishing inflection point the Model S represents -- that this is the first COTY winner in the 64-year history of the award not powered by an internal combustion engine? Sure, the Tesla's electric powertrain delivers the driving characteristics and packaging solutions that make the Model S stand out against many of its internal combustion engine peers. But it's only a part of the story. At its core, the Tesla Model S is simply a damned good car you happen to plug in to refuel.

    [Related story: Tesla Model S: The 2013 Yahoo! Autos Car of the Year]

    Engineering Excellence
    Tesla claims it has 250 patents covering the Model S, and more pending. The body is light, thanks to its all-aluminum construction, yet strong and stiff. The front and rear suspension are also mostly aluminum. At the rear are extruded rear suspension links that provide the strength of forgings at much lower cost, while up front are hollow-cast front knuckles that weigh 25 percent less than a conventional knuckle of similar strength.

    The electric motor sits between the rear wheels, contributing greatly to the 47/53-percent front/rear weight distribution. The motor is an AC-induction type, the basic principles of which were demonstrated in the 1880s by Nikola Tesla himself, and it doesn't need expensive rare earth metals.

    Tesla offers three lithium-ion battery packs for the Model S -- 40-kW-hr, 60-kW-hr, and 85-kW-hr -- that are claimed to provide ranges of 140, 200, and 265 miles, respectively. The base 85-kW-hr powertrain delivers a stout 362 hp and 325 lb-ft of torque, while the performance version makes 416 hp and 443 lb-ft.The battery packs are assembled at Tesla's plant in Fremont, California, using Panasonic cells with nickel-cobalt-aluminum cathodes. Situated under the floor, the battery pack is a stressed member that further improves torsional rigidity, and helps lower the car's center of gravity to just 17.5 inches, about the same as a Ford GT's.

    Advancement in Design
    Refreshingly, Tesla designer Franz von Holzhausen resisted the temptation to make the Model S look different for the sake of being different to call attention to the fact it has an electric motor. Former GM design boss Wayne Cherry, a consultant judge this year, summed up the exterior design theme of the Model S as "somewhat safe and conservative," but noted the beautifully executed design-enhancing proportions, the excellent stance and gesture, and the harmony and grace of its lines. His only criticism? "The front end is a missed opportunity to establish brand identity."

    The Model S takes advantage of the packaging opportunities afforded by the compact EV powertrain. The cabin is roomy, though the raked roofline impinges on rear-seat headroom. With no engine up front, the "hood" covers a useful luggage space, and the rear hatch opens to a cavernous load area that gets even bigger when you fold the rear seats flat. Total load capacity is 63.4 cubic feet, not that far shy of the 63.7 cubic-feet in a Chevy Equinox, and despite its rakish looks, the Model S is the first hatchback in the world to offer third-row seating.

    A number of the interior design solutions need more polish. However, all judges were impressed with the Tesla's unique user interface, courtesy of the giant touch screen in the center of the car that controls everything from the air-conditioning to the nav system to the sound system to the car's steering, suspension, and brake regeneration settings. The system means the Model S interior is virtually button-free, and the car has been effectively future-proofed: More functionality is only a software update away.




    Efficiency

    Whatever what you use -- gasoline, electricity, hamsters in a wheel -- making a vehicle move requires the consumption of energy. The laws of physics are immutable. The question is, how efficiently can it be done?

    In the case of the Tesla Model S, the answer is very. The best energy consumption figure we've returned is 118 mpg-e for a 212-mile run from the eastern fringe of the Los Angeles sprawl to Las Vegas, Nevada. For the 313 miles of road loops during the COTY evaluation, where the car was driven at normal speeds by all the judges with the air-conditioning running, it averaged 74.5 mpg-e.

    Impressive numbers, especially considering the 4766-pound Tesla Model S Signature Performance version will nail 60 mph in 4.0 seconds and the quarter in 12.4 seconds at 112.5 mph, with a top speed of 133 mph.

    Safety
    In terms of active safety, the Tesla Model S is at the top of the class. With all the car's mass down low and between the wheels, the Model S is a very stable platform, and the electric motor's instant torque means the car is quick and responsive in traffic and during overtaking moves. The stability control and anti-lock braking systems are calibrated to the unique instant-on torque and regenerative braking characteristics of an EV.

    When a crash does happen, the usual complement of passive safety devices, including an array of airbags, kick into play. Beyond that, clever engineering such as the double octagon extrusions front and rear, and the immensely strong roof structure, is working to protect you. Tesla claims the Model S outperforms federal crash standards, having been impact-tested at 50 mph (the mandatory standard is 35 mph) and exceeding the roof crush requirement by a factor of 2.

    Value
    With a base price of $58,570 (before a federal tax credit of $7500), the 40-kW-hr Model S is competitive with entry-level Mercedes-Benz E-Class, BMW 5 Series, and Audi A6. A loaded 85-kW-hr Signature Performance series, like the $106,900 (before tax credit) car Tesla founder Elon Musk drives, is priced right on BMW M5 and the Mercedes CLS63 AMG -- cars of similar performance, remember.

    Tesla buyers likely don't need to watch their pennies, but the calculation's worth doing all the same: At an average of 74.5 mpg-e, the Model S costs about 6 cents a mile to run, based on California's 13 cents per kW-hr.

    Performance of Intended Function

    The Tesla Model S nails the formula established by the German brands that currently dominate the midsize luxury sedan sector. It's fast and great to drive. It's well-equipped and high-tech. It won't look out of place rolling up the drive of a leafy country club or at the curb of a hip hotel. It's a credible alternative to a Mercedes, BMW, or Audi for someone who lives in metroplexes such as Los Angeles, New York, Chicago, and Atlanta.

    Tesla Model S motor in subframeWe've covered more than 1400 miles in cars equipped with the 85-kW-hr battery pack, and can confirm that version of the Model S will easily handle 200 miles of mixed city, suburban, and freeway driving without any hypermiling techniques. For the typical daily diet of commuting and short trips (the average American drives about 40 miles a day), the Model S is a compelling proposition.

    The mere fact the Tesla Model S exists at all is a testament to innovation and entrepreneurship, the very qualities that once made the American automobile industry the largest, richest, and most powerful in the world. That the 11 judges unanimously voted the first vehicle designed from the wheels up by a fledgling automaker the 2013 Motor Trend Car of the Year should be cause for celebration. America can still make things. Great things.

    Supercharge It!: Long-distance driving in the Model S
    By: Kim Reynolds

    Even with its remarkable, 85-kW-hr battery, the Model S' EPA-certified 265-mile range is about 100 miles short of spanning California's two biggest cities. And if you can't manage that, how would you ever get to New York? To answer that, Tesla recently unveiled the first five of what it calls its Supercharger stations along routes connecting L.A. to Las Vegas and San Francisco, and S.F. to Reno. (A sixth is located at SpaceX's Hawthorne factory.)

    These Superchargers are veritable electron fire hoses, delivering DC energy directly into the battery at rates up to 80 kW, bypassing the on-board 10-kW (or optional 20-kW) inverter(s), and gaining 150 to 160 miles in range in 30 minutes. As Tesla says, stops on long drives often take that long anyway, if you use the bathroom, stretch, and grab a snack.

    Moreover, charging will be partially sun-powered -- the stations' roofs are covered with Musk's Solar City photovoltaic cells, but don't worry, you can recharge at night -- and it's permanently free to Model S owners with the 85 kW-hr battery, and 60 kW-hr cars with supercharging capability. As Musk says, as long as you bring enough sandwiches and drinks, you could drive across the country without your wallet. Tesla predicts 100 stations nationwide by 2015.

    At the stations' unveiling, Musk compared them in importance to SpaceX's docking with the International Space Station. That could turn out to be an underestimation.

  • #2
    Nissan upgrades Leaf electric car, lowers price

    http://www.jamaicaobserver.com/auto/...--lowers-price
    Nissan upgrades Leaf electric car, lowers price

    Tuesday, November 20, 2012 | 6:41 PM

    Print this page Email A Friend!

    TOKYO, Japan (AP) — The upgraded Nissan Motor Company’s Leaf electric car can travel further without recharging, comes in a cheaper model and tells drivers how much battery life is left.

    The changes in the revamped model, shown Tuesday at a Tokyo hotel, were based on feedback from owners whose chief worry was running out of electric juice while driving, Nissan officials said.

    Electric cars emit no pollution, but they need to be recharged. Owners have charging equipment installed at home. But the scarcity of recharging stations on the roads has limited electric vehicles use to short commutes and kept zero-emission cars confined to a market niche.

    The new model can travel 228 kilometres (142 miles) on a single charge, up from 200 kilometers (124 miles) as long as you don’t use air conditioning, because of improvements such as streamlining the battery system and the vehicle’s lighter weight, according to Nissan.

    It sells for less than 2.5 million yen (US$31,000) in Japan when stripped of fancy options and adding government green subsidies — more affordable than the cheapest previous model at just below 3 million yen (US$37,000).

    Nissan did not detail overseas sales plans but said similar upgrades were in the works.

    The Leaf is the world’s most popular electric vehicle, comprising more than half of all electric car sales. Leaf global sales since late 2010 total 43,000 vehicles, about half of them in Japan.

    More than 17,000 Leaf cars have been sold in the US and monthly sales are recently at about 1,500 vehicles, according to Nissan.

    Senior Vice President Masaaki Nishizawa told reporters the Leaf does away with the hassles of going to gas stations and allows drivers a cleaner conscience.

    “People who try out the Leaf are moved,” he said. “But they are worried about cruise range.”

    When the Leaf first went on sale, recharging facilities were at 200 Nissan dealerships in Japan. That will grow to 700 Nissan dealers later this year, or 1,200 locations, when including other spots such as convenience stores.

    Among other changes to the Leaf:

    • Roomier luggage space after the recharging mechanism became smaller and was moved to the front.

    • A dashboard display that tells how much battery charge is left.

    • A navigation system that calculates the best energy-saving route to your destination.

    • A smaller lighter recharging nozzle.

    • Reduction of rare-earth use by 40 per cent for the electric motor.


    Read more: http://www.jamaicaobserver.com/auto/...#ixzz2Ct2hnsWa

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