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BMW replaces tri-turbo diesel with a quad turbo

Quad turbos have until now been the stuff of Bugattis. BMW is introducing a quad turbo diesel for the 7 Series, with nearly one hundred horsepower per turbo. It's all about making the six-cylinder 3.0-liter turbodiesel all as enticing a proposition as possible, and it faces strong competition from Audi's new twin-turbo V8 diesel available in the SQ7 TDI. The earlier, N57S engine (pictured above) utilized a triple-turbo setup good for 381 horsepower and 546 lb-ft. The new B57 version, confirmed by BMW at the 37th International Vienna Motor Symposium, adds yet another turbo for 394 hp and 561 lb-ft, and that massive torque is available from 2,000 to 3,000 rpm. It means the 7 Series gets from 0-60 mph in a snappy 4.5 seconds. The engine could produce even more torque, but 561 lb-ft is all the ZF 8HP 8-speed automatic transmission can handle. The N57S engine's dual-stage turbocharging setup consisted of one low-pressure turbocharger to take care of low-end torque, and two high-pressure turbos for the higher rev range. In the new B57 engine, the big turbo is now replaced with two smaller units on a common exhaust, to benefit from lower costs and smaller unit weight. In addition to the gains in power and torque, fuel economy has reportedly been improved by 5 percent. There are no reports yet whether the B57 TOP quad-turbo will make it to the US market, but customers in the European high end diesel saloon market will probably be very excited. Initially it will be available in the 750d xDrive version, and other top-end models like the 5 Series and the X5 will follow later on. Related Video: News Source: Krone.atImage Credit: BMW BMW Diesel Vehicles Luxury Performance Sedan confirmed vienna motor symposium

BMW M5 spied as camouflage striptease continues

The facelifted BMW M5's striptease continues. The latest spy images of the super sedan show even more headlight and taillight details, on top of more overt signs of this car's character. Our first spy photos of the M5 showed a car with production 5 Series wheels and tiny quad exhaust pipes. The next set got sportier black wheels. But the latest shots depict a machine that gets the current M5 Competition Package's black wheels along with BMW M's trademark blue calipers, just like the current car. It also ditches the camouflage on the pillars, roof rails, and rear windows. Beyond those changes, stripping away some of the camouflage has shown modest tweaks. We're finally getting a good look at the updated, squared-off LED running lamps and the tweaked front fascia. Updates are even more minor in back. But there may be something more drastic at play with the taillights. Studying these shots, we can't really see any detailing in the rear lamps. There's a similar thing going on between the normal LEDs on the BMW M4 and the OLED units in the new M4 GTS. Backing up this speculation is a single shot of one of the rear turn signals illuminated. It doesn't look quite like the current car's signal, but we can't be certain. It's possible that the shots and the camouflage might be playing tricks on our eyes. And since this is the first time we've seen the updated M5 with production taillights, there's no real basis for comparison. Still, BMW's tantalizing new OLED tech is sure to proliferate beyond the M4 GTS. We just can't yet be certain if it's coming to the next M5. Related Video:

Will next BMW Project i car be an i6?

BMW may be steadily working its way through the single digits when it comes to the i sub-brand of plug-in vehicles for the next few years. The automaker started with the i3 and the i8, and we heard rumors about an i5 and an i7. Oh, and we've heard about a potential i4, too. None of these have been confirmed. Still, next up is the i6, according to Automobile. There aren't a ton of details, but the all-electric vehicle would be about the same size as the 3-Series line that's long been a workhorse for the German automaker. Like the other Project i vehicles, the i6 would have a lot of carbon fiber in order to reduce weight and help with range extension. The model would also likely have multiple electric motors as well as a state-of-the-art lithium-polymer battery that would provide a big single-charge range, though, again, no specifics on that number. Word got out earlier this year about a supposed i5 model that would be a plug-in hybrid with a gas-powered engine and two electric motors that combine for about 540 horsepower. Other reports said that the four-door sedan would actually fall under the i7 badge. BMW North America chief Ludwig Willisch said this past spring that the sedan in question wouldn't be seeing the light of day any time soon. BMW has already doubled US sales of its two Project i vehicles this year. Through November, Bimmer's sales of its i8 plug-in hybrid quadrupled from a year earlier to about 1,600 units, while sales of the i3 electric vehicle jumped 89 percent from a year earlier to about 9,600 vehicles.