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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.

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.

BMW's DriveNow car sharing shutting down in SF next month

BMW's DriveNow car-sharing service is suspending operations in San Francisco next month after more than three years. The culprit? Not enough parking spots in the City. BMW debuted both DriveNow car-sharing and its ParkNow service in the City by the Bay in August 2012, initially launching with the ActiveE plug-in vehicle and later moving over to the i3. While there probably wasn't a shortage of folks looking to drive those cars, it was the ending part of that equation that proved problematic. That's because San Francisco hasn't been able to clear out enough street-parking spots to make the program work properly, despite adding 80 spaces for the 150 cars in the program back in 2014. "We hope to return to San Francisco in the future and will continue to engage with the City on possible solutions that will allow you to experience the full benefits of our one-way car sharing service," said DriveNow CEO Richard Sternberg on the company's website. "In the meantime, we are focusing our efforts on new cities where our transportation solution can flourish. We would like to thank you for your loyal support and embracing flexible car sharing as an alternative transportation method." As far as that expansion to other US cities, BMW hasn't been specific. Bimmer also runs the DriveNow program in three Germany cities as well as Copenhagen, Vienna and London. So, DriveNow apparently has an easier time finding parking spots in London than in San Francisco. Why BMW couldn't use a flexible parking system for its one-way rentals like the similar Car2go program uses remains a mystery. Related Gallery BMW i3 Available Through DriveNow In Germany View 17 Photos News Source: DriveNow via BMW BlogImage Credit: DriveNow/Facebook Green BMW California parking drivenow