宝马继去年底发布了M550i xDrive汽油版车型之后，近日又首度亮相了柴油版的M550d xDrive。该车搭载了目前世界上动力最强劲的六缸柴油引擎，这台3.0升引擎功率达到294千瓦/400马力@4400转/分，峰值扭矩760牛米@2000转/分。而在低至1000转/分时扭矩也能达到450牛米。与引擎搭配的是八速自动变速器和全轮驱动系统。在性能方面，该车百公里加速时间4.4秒，比老款车快了0.3秒，经过电子限速后的最高时速为250公里。同时百公里油耗也降低了0.4升，百公里综合油耗为5.9升。与汽油版车型一样，柴油车也标配M运动悬挂，行驶高度降低了10毫米。该车配备19英寸M合金轮圈，M制动系统，略微改款空力套装和整体主动转向系统。该车将于7月在欧洲上市，旅行车版本将于年底上市。
BMW M550d xDrive Debuts With Mountain-Moving 560 LB-FT Of Torque
Diesels might be a dying breed in some regions of the world, but not in Bavaria. After coming out with the gasoline-powered M550i xDrive towards the end of last year, BMW is now showing off its diesel counterpart, the new M550d xDrive.
Billed as being the world’s most powerful six-cylinder diesel engine “in the automotive area,” the 3.0-liter has no less than four turbochargers to churn a mighty 400 horsepower (294 kilowatts) at 4,400 rpm and a massive peak torque of 560 pound-feet (760 Newton-meters) available from 2,000 rpm. From a low 1,000 rpm, the driver has 332 lb-ft (450 Nm) of torque already available. All that power is channeled to an AWD setup through an eight-speed automatic sports transmission.
In terms of performance, go for the sedan and the sprint to 62 mph (100 kph) will take a mere 4.4 seconds whereas the slightly heavier wagon needs an extra two tenths of a second to accomplish the same task. Both body styles come with an electronic top speed limiter that will kick in at 155 mph (250 kph).
Corroborated with the weight loss brought by the new-generation 5 Series, the sedan’s sprint takes 0.3 seconds less than before. Not like it matters a great deal, but fuel consumption is down by 0.4 liters in the combined cycle to 5.9 liters in the case of the sedan.
Like its gasoline twin, the diesel monster gets an M sports suspension as standard and that drops the ride height by 10 millimeters (0.4 inches). Exclusive 19-inch M alloy wheels are part of the deal as well, as are the M brakes, a subtle aerodynamic kit, and Integral Active Steering.
The sedan will be the first to go on sale in Europe this July, with the Touring to follow towards the end of the year.