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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.

BMW pitting self-drifting car against drift champion

The BMW M235i certainly makes a capable drift machine. Last year, the Bavarian brand had five of them with the tail out in unison in South Africa for the Driftmob. The coupe even proved that it could slide without a driver's intervention. For the latest sideways stunt, the company wanted to know which was the better drifter: an autonomous car or a human. This clip is just the trailer for BMW's entire drift challenge video, and it seemingly gives away the ending of the whole thing. We're sure, though, that there must be something more to the stunt than what's on display here. The driverless Audi TTS from Stanford University was reportedly slightly faster than an amateur racer around Thunderhill Raceway Park recently, and BMW has also been working at this problem for years with things like its Track Trainer. Regardless of how you feel about driverless cars, it's amazing how quickly autonomous tech is progressing – even on the track. Related Video: News Source: BMW via YouTube BMW Technology Emerging Technologies Coupe Autonomous Vehicles Performance Videos drifting bmw m235i bmw connecteddrive

BMW eyes Z4 replacement before 2020

As BMW has been busy building four-door versions of two-door versions of four-door cars, less useful crossovers and front-drive minivans, you could be forgiven for thinking it had given up on its aging Z4 roadster. But that, we're pleased to report, isn't the case. According to Automotive News, BMW is hoping to release the next-generation Z4 (if that's what it ends up being called) before the close of this decade. The news outlet spoke to the company's chief engineer, Klaus Frohlich, at the 2015 Geneva Motor Show, who indicated that BMW may split costs on the new car with Toyota, as part of the partnership between the two automakers. This partnership is integral to the next-gen Z4, largely because of the declining importance of the roadster segment, Herr Frohlich indicated. "If you look at the volume... we have to realize that these segments are shrinking," Frohlich told AN. According to the publication, sales of the Z4, which hit the market in its current form back in 2009, dropped 11 percent in Europe and 13 percent in North America. The car also is less attractive to customers in China for a number of reasons. "[Chinese customers] are not interested in roadsters," Frohlich explained. That's because privacy is a high priority for drivers in China, AN said. On top of that, open-roof cars expose their customers to China's notorious air pollution, which drivers are understandably keen to avoid. Related Video: