The new BMW X5 xDrive50i takes its place as the flagship of the X5 family, yielding 400 horsepower at 5,500 rpm and 450 lb-ft of torque at 1,750 - 4,500 rpm from its twin-turbocharged 4.4 liter V-8 engine. Introduced in the BMW X6 in Spring of 2008, this all-aluminum V-8 features High Precision direct fuel injection, "reverse-flow" architecture for revolutionary responsiveness and packaging, and BMW' s VANOS variable valve timing technology. Together, these features create what may be the perfect balance between high fuel efficiency, low emissions, and the dominant, dynamic performance expected of a BMW V-8. The 0-60 mph sprint is accomplished in 5.3 seconds.
As part of the V-8 engine's reverse-flow architecture, the twin turbochargers are situated in the valley of the engine's "V" and exhale separately into two catalytic converters which are located on top of the engine and exit aftward into the large stainless-steel exhaust system via downpipes on either side of the new 8-speed automatic transmission. The exhaust streams remain separated until they meet in the large muffler at the rear of the vehicle and exit through two large, trapezoidal exhaust tips.
BMW X5 xDrive 35i receives a brand new inline-6 gasoline engine, internally dubbed "N55." The new engine features the same 3.0-liter displacement and 300 horsepower output of its predecessor (the "N54"), but features a single twin-scroll turbocharger in place of the previous twin, low-mass turbocharger units. Furthermore, the new inline-6 of the BMW X5 xDrive35i is the first BMW inline-6 to combine BMW's revolutionary Valvetronic throttle-less intake technology, High Precision direct fuel injection, and turbocharging. The result of combining this new inline-6 with the new 8-speed automatic is an BMW X5 with incredibly spontaneous responsiveness, exceptional power, and remarkable efficiency. The new BMW X5 xDrive35i will perform the 0-60mph sprint in 6.4 seconds, coincidentally on the same pace as the outgoing V-8 powered BMW X5 xDrive48i.
For the 2011 model year, BMW has made the X5 xDrive35i available in two additional trim levels: "Premium" and "Sports Activity."
The essential BMW X5 xDrive35i has an MSRP of $46,675 including Destination & Handling, and includes a popular profile of standard equipment often specified by BMW X5 customers, including BMW's Xenon Adaptive headlights, Rain Sensor with automatic headlight control, HD Radio, automatic climate control, foglights, 18" light alloy wheels, cruise control, and anti-theft alarm system. A Convenience Package is optional and adds the large panoramic moonroof, auto-dimming mirrors, Dark Burl Walnut, Bamboo, or Light Poplar wood interior trim, BMW Ambiance Lighting, and BMW Assist with Bluetooth. Stand alone options include rear side window shades, Navigation system with Real Time Traffic Information and Voice Command, satellite radio with 1-year subscription, and an iPod / USB adapter interface.
The BMW X5 xDrive35i Premium has an MSRP of $52,475 including Destination & Handling and includes a boosted profile of standard equipment, such as 19" light alloy wheels, roof rails and panoramic moonroof, power adjustable steering column, iPod / USB adapter interface, and privacy glass. Best of all, it includes standard Nevada Leather. In addition, buyers of the Premium model may choose up to four packages, including the Active Ventilated Seat Package, Convenience Package, Cold Weather Package, and Technology Package. Each package includes a raft of focused features that enhance comfort and convenience, allowing buyers to better customize the BMW X5 to personal taste. Third Row seating, which enables the BMW X5 to accommodate up to 7 passengers, also becomes available on this model.
The BMW X5 xDrive35i Sport Activity has an MSRP of $54,975 including Destination & Handling and includes even more standard equipment than the Premium model, such as 20" light alloy wheels, sport seats, Shadowline exterior trim, and Anthracite headliner. In addition to the packages available on the Premium model, customers may add the popular M Sport Package to the BMW X5 xDrive35i Sport Activity model. The M Sport Package includes 20" wheels with performance tires, the Adaptive Drive system, aluminum roof rails, M door sill plates, M driver footrest, M steering wheel, M aerodynamic enhancements, and increased top speed limiter (150 mph).
On both new gasoline models of the BMW X5, sending the newfound power to the standard xDrive intelligent all-wheel drive system is BMW's new 8-speed automatic transmission with Steptronic control. The new 8-speed transmission is standard in the BMW X5 xDrive50i and X5 xDrive35i, and raises the industry standard for compactness, efficiency, and gear selection. The new transmission weighs no more than its 6-speed predecessor, yet offers closer ratios in the lower gears for improved acceleration and two additional "tall" gears for relaxed, efficient cruising. BMW's 8-speed automatic was introduced on the 5-Series Gran Turismo and 760Li Sedan in the fall of 2009.
BMW's Brake Energy Regeneration system is also fitted to the gasoline X5 models. It incorporates a special deep-cycle Glass Mat battery with programmed alternator disengagement so that, most of the time, the vehicle's battery is only charged while the vehicle is coasting or braking. Over time, the Brake Energy Regeneration system can save 1-2% on fuel consumption. Brake Energy Regeneration is another feature in BMW's EfficientDynamics portfolio of small features and adjustments which have a cumulative effect on the efficiency-performance balance of each BMW vehicle.
The BMW Advanced Diesel X5 xDrive35d was introduced to the United States as a 2009 model, and despite increased competition remains the fastest, most fuel efficient diesel-powered vehicle in its class. The huge torque output of 425 lb-ft. at 1750-2250 rpm speaks for itself; BMW X5 xDrive35d drivers will marvel at this engine's robust response at low to medium speeds. The peak power output of 265 hp also makes an impact, as does the resulting 0-60-mph time of 6.9 seconds. It returns EPA mileage estimates of 19 mpg city and 26 highway.
For the 2011 model, BMW has made no changes to the award-winning BMW Advanced Diesel powertrain, but rather has focused efforts to ensure the BMW X5 xDrive35d benefits from the latest design updates to the X5 family. Despite the enhancements for the new model year, MSRP for this model remains $52,175 including Destination & Handling.
BMW Advanced Diesel with BluePerformance optimizes emission management by incorporating an oxidation catalyst placed close to the engine, a diesel particulate filter housed in the same unit, and an SCR catalyst with urea injection. Apart from filtering out even the smallest particles from the flow of exhaust gases, this combination ensures effective reduction of nitric oxides (NOX) by way of a chemical reaction within the exhaust system initiated by the injection of a small dose of urea referred to as Diesel Exhaust Fluid. Into the exhaust stream. The ammonia (NH3) generated in this process within the SCR catalyst subsequently converts the nitric oxides (NO and, respectively, NO2) in the exhaust gas into environmentally compatible nitrogen (N2) and water vapor (H2O).
BMW has developed a two-tank system for DEF ensuring convenient use of this new technology with all the benefits and ease required by the customer: The amount of DEF required in each case is drawn from the active tank comprising approximately 1.6 gallons by means of a dosage pump. And since the urea solution would freeze at a temperature of 12.2o F (−11oC), this active tank, as well as the dosage pipes are heated.
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