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BMW i8 fully revealed ahead of Frankfurt debut

It may be early in the morning here in the US, but in Germany, the first day of the 2013 Frankfurt Motor Show is in full swing. BMW took advantage of the early start and showed off its long-awaited i8 plug-in hybrid sportscar, a two-plus-two, swan-wing-doored coupe, to the Frankfurt crowd.
We drove a BMW i8 prototype back in August, so many of the things we're reading today are clarifications on our initial suspicions or speculations. Underhood sits a 1.5-liter, turbocharged, three-cylinder engine. On its own, it churns out a respectable 231 horsepower and 236 pound-feet of torque, which is then channeled to the rear wheels by way of a six-speed automatic transmission. An electric motor, meanwhile, sends 131 hp and 184 lb-ft of torque through a two-speed automatic to the front wheels.
With all-wheel drive at its disposal, the total system power sits at 362 hp and 320 lb-ft of torque, and allows the i8 to scamper to 62 miles per hour in just 4.4 seconds. That excellent performance is offset by an estimated fuel economy figure of 94 miles per gallon, though, making this a fast and efficient vehicle. Charging is impressively fast on the i8, with a full charge coming from a 110-volt outlet in under four hours. A BMW Charging Station will trim the charge time down to 1.5 hours.

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A documentary shows how Houston, Texas significantly improved its outdated bus system.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

BMW i8: Jaw-dropping style and green performance, but why?

Why is there a BMW i8? Given the relative simplicity, affordability, practicality and energy efficiency of BMW's i3 sedan – available as a $42,000 all-electric or $46,000 extended-range EV – why design, engineer and build the much more complex and expensive ($137,450) but much less practical, exotic plug-in hybrid i8 2+2 sports car? Are i8 sales really worth BMW's huge investment of engineering effort and dollars? In 2015, BMW sold 2,265 i8s in the US, or about 189 a month. That compares to 11,024 (919 a month) for BMW's own i3, an estimated 27,840 (2,320 a month) for Tesla's battery-only EV Model S sedan and 1,024 (85 a month) for Cadillac's handsome, more practical and less expensive (but ridiculously overpriced and dismal-selling) ELR extended-range-EV luxury coupe. Are such sales really worth BMW's huge investment of engineering effort and dollars? The i8's lightweight Carbon Fiber Reinforced Plastic (CFRP) "Life Module" passenger cell rides on an aluminum "Drive Module" chassis that houses its complex propulsion system – a 228-horsepower, 1.5-liter turbocharged gas 3-cylinder (half of BMW's 3.0-liter twin-turbo straight six) driving its rear wheels through a six-speed automatic and a 129-hp electric motor twisting its front wheels through a "two-stage" automatic – and a 5-kWh lithium-ion battery. Its drag coefficient (Cd) is an aero-slick 0.26, and BMW says it can run on battery energy alone for up to 22 miles. Its total system output is a healthy 337 horses, and its EPA economy is 76 miles per gallon equivalent in gas-electric mode, but just 28 mpg when it's gas-only. A Driver Experience Control and an eDrive button offer EV and Comfort modes, plus Eco Pro (12 percent more range) and Eco Pro+ (12 more). So what is this gorgeous plug-in hybrid sports car like to drive and live with? I missed its press launch so have been hoping for some quality time with one ever since. Production has been limited, and US press cars are few, but BMW said I would eventually get my chance. It finally happened. If the unlovely i3 is a green technology revelation, this supermodel-sexy i8 is a green styling and performance revolution. If the i3 is the practical soccer mom of battery BMWs, the i8 might be the ultimate Teutonic trophy wife. But really, why do it? For starters, just look at it. Some might see a new, high-tech take on the Giugiaro-designed BMW M1 mid-engine sports car. Just 453 of those were built from 1979 to 1981.