The new BMW X5 M and new BMW X6 M combine the characteristic features of the BMW X family with the commitment to high performance that defines an M car. The latter is highlighted by the cars’ performance figures. Both models complete the sprint from 0 to 100 km/h (62 mph) in 4.2 seconds in conjunction with the standard eight-speed M Steptronic transmission.
The new BMW X5 M and new BMW X6 M (fuel consumption combined for both models: 11.1 l/100 km (25.5 mpg imp); CO2 emissions combined for both models: 258 g/km) see BMW M GmbH setting the pace in the high-performance Sports Activity Vehicle (SAV) and Sports Activity Coupe (SAC) segment. When the previous generation of the two cars arrived in 2009, it was the first time the high-performance character distilled by BMW M GmbH had been transplanted into an all-wheel-drive BMW X model.
M TwinPower Turbo engine
The new M TwinPower Turbo engine for the BMW X5 M and BMW X6 M is the most powerful unit ever developed by BMW for an all-wheel-drive vehicle. Boasting M TwinPower Turbo technology with a pair of TwinScroll turbochargers, cross-bank exhaust manifolds, VALVETRONIC and Direct Petrol Injection, the 4.4-liter V8 produces maximum output of 423 kW/575 hp between 6,000 and 6,500 rpm. That represents a four per cent increase over the predecessor models. Peak torque has been boosted by 70 Nm (52 lb-ft), which equates to a rise of 10 per cent. Its 750 Nm (553 lb-ft) can be enjoyed across a broad rev range between 2,200 and 5,000 rpm.
The BMW X5 M and X6 M chassis
The new BMW X5 M and BMW X6 M are equipped with double-wishbone front suspensions which feature revised kinematics. A modified upper wishbone (increase in camber, optimized camber progression and steering pivot axis) allows a further increase in cornering force potential and agility. At the same time, M-specific elastokinematics with more rigid bearings improve wheel guidance and therefore directional stability – both at the front axle and the Integral-IV rear axle (a spatial suspension system with anti-squat and anti-dive). Firmer suspension spring tuning and a 10-millimeter drop in ride height team up with the Dynamic Drive active roll stabilization system to bring about a reduction in body roll and movement. In addition, the BMW X5 M and BMW X6 M come as standard with air suspension with self-levelling at the rear axle. Plus, Dynamic Damper Control with electronically adjustable dampers – the driver can select from three modes (COMFORT, SPORT and SPORT+) at the touch of a button – ensures an optimal balance between dynamic flair and ride comfort.
The BMW X5 M and X6 M eight-speed transmission
The new BMW X5 M and new BMW X6 M send their engine power to the wheels via the newly developed eight-speed M Steptronic transmission with Drivelogic, which mirrors the operating concept of the M Double Clutch Transmission used by other M models. With its instantaneous responses, rapid gear changes and super-direct reaction to load changes, the torque converter auto links up with the new higher-torque turbocharged engine. At the same time, its wider ratio spread allows it to offer a drop in fuel consumption over the six-speed transmission of the previous-generation cars, as well as an increase in driving comfort and improved performance. This is also the first torque converter to enable “creep on demand” through the Low Speed Assistant.
