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BMW reveals M4 safety car with innovating water injection system [w/video]

Racing series don't just pick their safety cars at random, or use just whatever car is lying around. These days the car that sets the pace at the front of the pack is typically provided through consideration by a sponsor. In the MotoGP series, that's BMW and its M division, which have served up the Official Car of MotoGP since 1999. What you're looking at is the latest, and it packs some innovative technology on board. Aside from the matte black wrap with BMW's iconic striped livery, upgraded aero kit, retrofitted interior and emergency equipment, this BMW M4 coupe packs a new injection system under the hood. Only instead of injecting fuel, it injects water into the combustion chamber – something that wouldn't usually be recommended, but BMW insists actually aids in the combustion process. The idea is that the temperature of the air being mixed with the fuel inside the engine is usually hotter than ideal, so the system injects a fine mist of water into the collector in order to reduce the air's temperature... sort of like one of those hydrating misters at an amusement park or outdoor mall, but in an even hotter environment. The system brings the temperature of the air down to a more optimal temperature, helping it combust better. The process is said to yield a number of positive effects. For one, it reduces knocking. For another, it can make more out of lower-octane fuel where higher octane isn't available. It also can control the adverse effects of higher ambient temperature on the combustion process. But most of all, it increases output and reduce fuel consumption by around eight percent. Whether that eight percent is worth the added weight of the system – particularly with water pump and a 1.3-gallon tank in the trunk – is up for debate. But we'd imagine that the Bavarian engineers have weighed very carefully. Of course there's also the matter of refilling the water tank, which BMW says would be carried out whenever the safety car is refueled, but in real-world conditions would only necessitate attention once every five top-ups at the gas station. By now you might have guessed that BMW probably didn't develop this system just for the MotoGP safety car, and isn't planning on keeping it confined to the racetrack. Instead it's being tested and demonstrated on the safety car before being rolled out on production models in the future.

Recharge Wrap-up: New Mitsubishi Evo PHEV, Amsterdam buses go all electric by 2025

Mitsubishi hopes to launch a new vehicle badged as the Evo based on the Concept XR-PHEV II. Mitsubishi President and COO Tetsuro Aikawa tells Autocar the new vehicle will share characteristics with the outgoing Lancer Evolution loved by enthusiasts, but will feature a plug-in hybrid powertrain in the body of a compact crossover. "In Japanese, when you pronounce 'Oh,' it means 'king,'" says Aikawa. "So we would like to launch this type of car, featuring EV and PHEV technology, which is the ultimate of its kind. 'EV' for electric vehicle, 'O' for king - Evo." The Mitsu boss also envisions the four-wheel-drive Evo to be "light and fast - something performance-oriented." Read more at Autocar, or at Hybrid Cars. Amsterdam aims to have all its buses running on electric power by 2025. Within two years, the city will have 40 electric buses in operation, and will phase out the rest of the diesel fleet in the following years. "This project means we are saying goodbye to symbolic behavior and pilot projects," says transport alderman Abdeluheb Choho. "We have decided to just do it, not to experiment with five buses." Read more at Clean Technica. BMW and General Motors are both listed in the top five US organizations generating and using green energy onsite. In an EPA list, BMW's Spartanburg, South Carolina manufacturing facility is number four, with credit going to its use of landfill gas. In 2013, 69,383,477 kWh - or 37 percent of its total usage - came from green energy. GM's Fort Wayne Assembly was number five, with 43 percent of its power coming from methane from a nearby landfill. Volkwsagen also made the Top 30 list, at number 15, for its Chattanooga assembly plant's use of solar power. See the EPA's full list, and read more at Green Car Congress. Volkswagen will release its 2014 sustainability report on Twitter on Monday, May 4. It will be the first step in using the social medium to distribute information on economic, environmental and social sustainability to a larger audience. The report will include a section called "Electrifying China with a tailor-made efficiency strategy," which focuses on reducing CO2 emissions through the use of electric vehicles. Volkswagen has already begun releasing highlights from its report on its Twitter account with the hashtag #VWCSR. Read more in the press release below and, of course, on Twitter next week.

BMW electrifies the 2 Series Active Tourer with a plug-in prototype

BMW is developing a hybrid version of its 2 Series Active Tourer. At the company's Innovation Days 2015, we're finally getting to see the fruits of that electric labor with a prototype for a plug-in hybrid version of the front-wheel-drive hatchback. The Bavarians aren't keeping a secret that they intend to build a model like this in the future. But like the rest of the Active Tourer family, it's likely to remain unavailable to US buyers. BMW is already somewhat familiar with the realm of plug-ins with its i sub-brand and forthcoming X5 xDrive40e PHEV. This 2 Series Active Tourer is largely an adaptation of some of that tech. Up front, there's the company's transversely mounted, 1.5-liter turbocharged three-cylinder gasoline engine making 134 horsepower and 162 pound-feet of torque, and it's linked to a six-speed automatic gearbox. A generator on the front axle can also briefly boost output by 20 hp and 111 lb-ft, or help charge the rear-mounted battery. At the back is an electric motor making 87 hp and 122 lb-ft with a two-speed transmission spinning the rear axle. All of this is linked together via the Dynamic Stability Control to shuffle around power as necessary. The hybrid system generally prioritizes using electric power at speeds below 50 miles per hour and kicks on the engine from there. Depending on the settings, drivers can also force it into EV mode with a maximum range predicted at nearly 24 miles. BMW claims the 2 Series Active Tourer PHEV could get to 62 mph in a brisk 6.4 seconds, and the company estimates the setup can return the equivalent of 118 miles per gallon on the European cycle. While there's a lot of equipment to package together in this system, BMW claims that interior room is identical to the purely internal combustion version. The hybrid battery is under the rear seat, and propulsion for the back wheels is centered around the axle. As a prototype, the automaker isn't really talking pricing yet beyond stating buyers "do not have to pay a high premium for the technology." 2. BMW eDrive in the pipeline for further BMW models: The BMW 2 Series Active Tourer plug-in hybrid prototype. The advent of plug-in hybrid variants in various model series from the BMW brand is making all-electric driving with zero local emissions in a premium car a possibility for an ever-increasing number of target groups.