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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 looking to fix i3 acceleration problem uncovered by Consumer Reports

The BMW i3 has been hailed in some quarters as the future of electric mobility, what with its innovative carbon-fiber-reinforced plastic body and commitment to sustainable materials wherever possible. The modernist little hatch is even available with a 650cc two-cylinder gas engine with 34 horsepower to act as a range-extender for those who want it. However, that optional engine might have a drawback - at least for the moment.
Consumer Reports brought the problem to light when one of its drivers was behind the wheel of an i3 using the range-extender. When the driver attempted to pass another vehicle on a rolling, two-lane road, the BMW suddenly had no power to accelerate - a scary situation. CR started examining the car and found something pretty shocking: After driving at a constant speed for a while without any regenerative braking in range-extended mode, acceleration to 60 miles per hour plummeted from about 9 seconds normally to a staggering 27 to 40 seconds in their testing.
A BMW spokesperson told CR that it knows about the problem and has a fix coming next spring that also works on current models. The upgrade includes a state of charge indicator, a warning about loss of power and uses the car's navigation to boost the battery before driving on rolling terrain. It is not clear if the severe power deficiency will also eventually result in a recall.

Next BMW M5 could go all-wheel drive

Franciscus van Meel had been a part of Audi AG management since 1996, in positions including chassis development and vehicle project director. In 2012 he was named managing director of Quattro GmbH - headquarters for personal favorites like the RS6 Avant and R8 - but he lasted just two years before being sent to lead an R&D division in Beijing. He returned from exile just ten months later but wearing a blue and white roundel, after being named to the top spot at BMW M. So it shouldn't be a surprise that when Auto Express asked van Meel about all-wheel drive on the next M5, he replied, "If we continue the power increases in the future... then probably the next generation M5 and M6 will have so much torque and power that we need to think about those solutions." It would make sense from a competitive standpoint, too - once the Mercedes-Benz E63 AMG went 4Matic, that put the two of the three cars in the segment in the AWD column. And there's no "if" about a power increase: a recent report put next generation's output at 600 hp - that's 40 hp more than today - to power a lighter car. That report said there'd be the option of four-wheel drive, but AE takes van Meel's words as a definite sign that we'll see a more complex drive arrangement under the next M5. If so, then truth be told, van Meel is reiterating the thoughts of his predecessor from two years ago. The new M boss doesn't like the phrase "four-wheel drive," however; in clarifying those "solutions" he mentioned, he said that the car would be rear-biased to remain emotional, with the front tires kicking in to aid traction. Related Video: News Source: Auto ExpressImage Credit: BMW BMW Luxury Performance Sedan bmw m