2009 Bmw Z4 Sdrive 35i 18k Low Miles Convertible Clean Carfax on 2040-cars

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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 X6 M said to lap the 'Ring in 8:20

Bimmer Today reports that the German rag Auto Zeitung ran an Audi RS3 and a BMW X6 M around the Nurburgring together, and the hotted-up sports activity vehicle came in just five seconds behind the white-hot hatch. Driven by 'Ring regular Horst von Saurma, the RS3 ran its lap in 8 minutes, 15 seconds, and the X6 M ran an 8:20. If those times are accurate, that makes the X6 M the second fastest production SUV on the lap-time list according to Wikipedia: ahead of it is the 550-hp Range Rover Sport SVR, which ran a time of 8:14. That time puts BMW's 575-horsepower, 5,200-pound SUV four seconds ahead of the time registered by the last-gen, 555-hp X6 M, and well ahead of the Porsche Cayenne Turbo S that Sport Auto clocked an 8:34 with. It would not, however, match the predictions that X6 M project manager Herbert Bayerl made for it in an interview with Sport Auto earlier this year. Bayerl said "The new BMW X6 M moves at the level of M3," speaking of the E92 BMW M3 that Sport Auto ran around the 'Ring in 8:05. It is, though, two seconds faster than the E46 M3, which lapped in 8:22. Bayerl called out the Range Rover Sport SVR directly, saying, "We have been traveling much faster in testing and have undercut the time of Range Rover several times," and "We don't need any special attachments to go faster." Auto Zeitung's report on the lap is only for subscribers so we'll have to wait for more official news. For the apples-to-apples comparison we'll be looking forward to Sport Auto's hot lap, then we'll know if the Range Rover has anything to fear. Related Video:

2015 BMW M4 Convertible is here to put wind in your sails

Each generation of the BMW M3 has included a convertible model. Even the distant E30, the patriarch of the M3 line, had an ultra-rare (only 787 were built) droptop model. The convertible became more common on the successive generations, with the hardtop-convertible E93 being the most recent. Considering this history, there seemed very little doubt that as the M3 became the M4, a convertible would be in the cards. Now, the new droptop has arrived.
Set for its global debut at the 2014 New York Auto Show, the 2015 BMW M4 Convertible features, like its forbearers, everything that's great about the hardtop variant while adding an unlimited amount of head room. That means the same 3.0-liter, 425-horsepower, 406-pound-foot, twin-turbocharged straight six sits under its domed hood, while either a six-speed stick or a seven-speed M dual-clutch transmission dispatches power to the fat rear tires.
As for specific differences between the hardtop and the new convertible, obviously, the droptop is heavier. A lot heavier. Where an M4 with a six-speed manual tips the scales at 3,530 pounds, the M4 Convertible weighs in at 4,055 pounds. Believe it or not, BMW has actually trimmed 90 pounds from the last-generation M3 convertible, code-named E93. This marginal weight reduction from the third-generation convertible to the fourth is barely half of the 174 pounds BMW was able to subtract when transitioning from M3 Coupe to M4 Coupe.