| BMW has announced
an update for the X5 SAV. The upgraded model debuts
in September 2003 at the Frankfurt Motor Show, and goes on sale soon after
the show. The X5 receives three new engines (two in the US which won’t get
the diesel). Eight-cylinder power comes from a 4.4i V8, with a new high
performance X5 4.8iS arriving in spring 2004. BMW’s latest six-cylinder
3.0 diesel engine is added to the line up, and is complemented by the 3.0i
petrol engine carried over from the existing car.
New Engines Offer More Power
The new BMW 4.4i V8 engine features
VALVETRONIC
inlet control and Bi-Vanos valve timing and is mated to a new six-speed
automatic gearbox with gear ratios tailored for the new X5. This
combination has already set new standards of performance in the new
BMW 7 Series. Developing 320 bhp (an increase of 34
bhp over the outgoing model), the X5 4.4i accelerates from 0 – 62 mph in
only 7.0 seconds (previously 7.5 seconds) before reaching a top speed of
149 mph (up from 143 mph) in its Sport guise.
The Big "D"
With its combination of performance and
economy, diesel power has proved a popular
option: in fact it is the best-selling model in the UK. The new BMW X5
3.0d features the second-generation common rail diesel engine, producing
218 bhp (previously 184 bhp) and a huge 500 Nm of torque (up from 410 Nm).
From standstill, 62 mph is reached in 8.3 seconds (1.8 seconds faster than
its predecessor) while still delivering 32.8 mpg on the combined cycle.
Top speed is 130 mph (up from 124 mph), helped by the new six-speed manual
gearbox featured as standard.
xDrive Action
Also used in the new X3,
BMW’s new xDrive system enables the power and torque increases to be
converted into usable traction in all driving situations. This completely
new, intelligent four-wheel drive system, announced recently on the
forthcoming X3, constantly varies drive between the front and rear axles,
depending upon the traction requirements.
Using information from the wheel sensors and
data collected from the DSC stability system, including the yaw rate and
steering angle, xDrive predicts any loss of traction or tire slippage and
reacts in a few milliseconds. A mid-mounted, electrically controlled
multi-disc clutch is used to distribute drive constantly between the front
and rear wheels, varying the torque delivery to the wheels which most
require it. This could be in a dynamic driving situation or, off-road, on
a slippery surface or incline.
This contrasts with the four-wheel drive system
of the outgoing BMW X5 which works on the basis of a fixed front-to-rear
drive ratio, and uses only DSC traction control for critical
interventions.
Subtly Revised Styling
Clothing the new drive train is a discreetly
revised front and rear profile. The front of the car has been revised up
to the A pillar, most noticeably the new headlamp units, with sweeping
contours and integrated indicator lamps, that match the design language of
other recently introduced BMW models. Also, in common with other models,
illuminated headlamp rings form the sidelights on the new car.
The bonnet has been redesigned, with sharper
edges that run into the trademark double kidney grilles, that have also
been reshaped and enlarged, lending a greater presence to the front view.
Also revised is the front valance section, with
redesigned fog lamps and larger air intakes now divided in the center by a
continuation of the bonnet’s strong lines.
At the rear, new transparent glass lamps
complement the revisions to the front.
Safety Features
The addition of the xDrive four-wheel drive
system raises the levels of active safety on the new BMW X5 to a new high,
as many more driving situations can now be taken in its stride. Passive
safety has also received a boost, as the X5 was recently awarded a maximum
five stars in Euro NCAP tests.
A number of BMW’s new safety features are
available on the new BMW X5. For the first time,
Adaptive Headlamps come
as an option, illuminating the road ahead in the direction that the car is
traveling, rather than the direction the car is pointing. When twinned
with bi-xenon headlamps and the car’s ride height, unrivalled road
illumination is guaranteed. Fitted as standard on all eight-cylinder
models, bi-xenon headlamps are available as an option on six-cylinder
vehicles.

Greater levels of safety are also available
when towing, thanks to BMW’s new Trailer Stabilization Control. As a
function of the familiar Dynamic Stability Control system, sensors monitor
and measure any dangerous pendulum motion from a swaying trailer and
sensitively apply the brakes, automatically returning the trailer to a
more stable condition. |