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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

New BBC Top Gear season is off to a great start

The past few years have been very demanding for Top Gear fans. The Jeremy Clarkson Top Gear got too big for itself, and the core quality of the series degraded as stunts and jokes gradually became more and more stale. Things came to a head with the Fracasgate, with Clarkson punching a producer in a very nice hotel in Yorkshire with a very nice brass plaque commemorating "The End of Clarkson's BBC Career". Fast forward to a year ago, when the BBC produced a new series of Top Gear, with famed breakfast show person and shouting enthusiast Chris Evans hosting. Laden with personnel and curiously lacking any direction, the first new season collapsed onto itself with Evans eventually quitting the entire shindig. After that, viewers received a new, Amazon-produced Clarkson-Hammond-May series called The Grand Tour, which was often brilliant and just as often hampered by writing as hackneyed as the last Clarkson years of Top Gear. Now the slate is clean. Evans is gone. The first Grand Tour season has aired. The BBC has had a good long time to re-evaluate its strategy. And the first episode of this season's Top Gear has aired in the UK - and will air March 12 on BBC America. Your first extended look at all new #TopGear, coming 5 March. See you there pic.twitter.com/lYoYOtrWxR — Top Gear (@BBC_TopGear) February 23, 2017 What an improvement! It seems like the producers have taken an ax to everything not strictly necessary for making a great car show, and they've left what is absolutely crucial. There are the three car guys, Matt LeBlanc, Chris Harris and Rory Reid. There is a new studio. There is a new track car. There is a celebrity, but it's not painful to watch. There are easy jokes, there are car jokes, there are Ronin jokes. Ronin jokes! It's as if Harris, by dissecting continuity errors in the 1998 film's BMW chase, is reaching out to us fans, saying he's one of us, and he did notice the wrong wheels when the black BMW falls from the bridge. (Other mistakes are wrong-colored tach needles, for instance.) The first car film is a quality Ferrari FXX K piece, with Harris enjoying one of the 40 built track-day specials on the bankings of Daytona. It's remarkable it was Harris who was allowed to drive the exclusive Ferrari, as the first "outsider" (in his words) to drive one; years ago Harris was one of the most vocal critics of Ferrari's practices, resulting in him getting banned from driving press Ferraris. But then again, this is a customer car.

BMW to offer carbon fiber wheels in a year or two

The Citroën SM sat on the first set of production glass fiber and resin wheels in 1972 when parent company Michelin developed the exotic hoops in order to take the SM rallying. It wasn't until 2008 that we got the first all-carbon-fiber wheel for passenger cars in the form of a prototype model from Weds Sports in Japan that remained a prototype. Australian company Carbon Revolution followed that a year later with its CR-9 all-CF wheel, first introduced on the Shelby Ultimate Aero and now available for independent purchase for about $15,000 per set. BMW could be the first OEM to offer entire wheels in carbon fiber reinforced plastic in two years.
The wheels - either all-CFRP or using a CFRP rim and alloy spokes - were shown off during BMW's Innovation Days in Munich and are products of the development work done on its i-branded cars. The full-CFRP wheel is 35-percent lighter than a forged alloy wheel, the hybrid alloy and CFRP wheel is 25-percent lighter, making for a decent drop in unsprung rotating weight. As demonstrators during a tech day the wheels aren't yet in the pipeline for production and EU approval, but an article in Auto Express claims that they could be on the market as soon as two years from now.
Other possible parts include a full carbon fiber steering wheel and propeller shaft, the latter of which is coming as a single-piece component on the new M3 and M4. BMW is also talking up its use of secondary carbon fiber - waste material from i3 and i8 production - that can be used for items like IP support structures, seat frames and spare wheels in place of traditional metals like aluminum and magnesium. There's an excerpt of the Innovation Day press release below with more details.