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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.

Is BMW the only real competition to Tesla Motors?

Tesla Motors chief Elon Musk probably isn't losing a ton of sleep over the new plug-in efforts by the makers of the "Ultimate Driving Machine," but maybe he should. That's what the Motley Fool is saying, presenting the case that the California company's real competition will come from BMW. What about the plug-in efforts of General Motors or Ford? Musk can hit the snooze, Motley Fool says. Unlike automakers that are "jamming battery packs into the existing vehicle design," BMW has built its i3 battery-electric and i8 plug-in hybrid supercar from the ground up. Like Tesla, BMW puts its battery packs into the floor of its vehicles. Most importantly, the i3 - and especially the i8 - are real performers. While the i8 is about 40-percent more expensive than the Tesla, it matches the Model S's 0-60 mile per hour acceleration times and handily beats its top speed figures. Tesla sold about 6,900 vehicles during the last three months of 2013 and BMW had more than 10,000 i3 orders on the books by late November and the first year's allotment of i8s is already sold out. The German automaker has what the Fool calls an "outside chance" of selling more plug-in vehicles than Tesla by next year, but Tesla is gearing up its gigafactory to get ready to sell a half-million EVs in 2020, so the race is most certainly on. You can read more over on the Fool.

Check out 90 years of BMW Motorrad in 90 seconds

After ninety years in business and first-to-market motorcycle innovations like the one-piece 'tunnel' crankcase, hydraulically dampened front forks and full fairings, as well as that trademark boxer engine, BMW Motorrad is celebrating its nonagenarian status with a video: You can follow the ride on BMW motorcycles from 1923 to now in just 90 seconds.
Okay, so there's more than a video - some anniversary-themed bikes and a new retro boxer model celebrating the R 32 "airhead' from 1923 also commemorate the occasion. But you can start with the video, and that's below.