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Photo above right: Author's Range Rover 4.0SE Above right: Author's Range Rover 4.0SE in Echo Canyon, Death Valley, 1999. (photo courtesy of Gordon Kallio). Left: Range Rover Mk III venturing off road, 2002. Lower Right: Author's Classic Range Rover in Greenwater Canyon, Death Valley, 1994.
When the first Range Rover was produced in 1970, it started a whole
new trend in 4WD vehicles. It blended supremacy over all competitors
off
road with comfort and convenience on road. With a production run
lasting
until early 1996, the Classic Range Rover was a unique if idiosyncratic
vehicle,
and the only one ever to be exhibited in the Louvre as a work of art.
Land
Rover
Owner International Magazine voted it as the best Land Rover ever in
1996
(One judge called it the best vehicle built by anyone, anywhere, ever.)
Successive newer models (beginning in 1994) have remained the benchmark
against which other SUVs compete; although not exhibited
in the Louvre they retain the title of King Off Road, while steadily
improving on-road performance and refinement.
The success of the original Range Rover was due mainly to its
inspired
mechanical design which gave it the best performance of any 4X4 both on
and
off
the pavement. While many think of it as just a luxury version of the
generic
4X4, its real secret was the extraordinary engineering innovation
hidden
behind the wood and leather trimmings. It possessed a massive box
section
ladder frame, prodigious ground clearance, a smooth V8 with good low
end
torque, and last but definitely not least, a brilliant suspension
design that rival manufacturers have still not equalled. The result
was outstanding all-terrain traction as well as the smoothest ride of
any
4x4. Later Range Rover models remain true to the original concept using
fundamental design innovations that keep them far ahead of competitors
in their enormous breadth of on and off road capability.
Refinements and New Models (For complete information se the Model Year Details pages).
In the 1980's and 90's while the original Classic Range Rover was
still in production, other manufacturers scrambled to catch up. But
refinements to the original model still kept it way ahead of the field.
Improvements included
suspension re-tuning, an automatic viscous locking center differential,
the first ABS system designed for off-road use, and electronic traction
control (on the rear wheels from 1993 and on all four from 1999). Just
when others started copying the coil suspension, it was replaced with a
sophisticated electronically controlled air-adjustable
suspension which could be raised and lowered over a 5 inch range.
Then,
in 1994 a completely new model replaced the
Classic.
A streamlined body shape incorporated even more luxury with
sophisticated
computer controlled functions. An improved air suspension, stronger
chassis,
manual control of low range ratios, more ground clearance, improved
dust
sealing, and a host of other new features assured retention of its
place
as "King Off-Road".
In 2002, an even more drastic redesign was completed, using a much stronger monocoque body and chassis with all-round independent suspension (both concepts were hitherto a heresy in the 4X4 world). The Range Rover III (also know as the 4.4, L322, and LM) had improved ground clearance, even more wheel travel, and cross-linked air springs for more tractiron and a softer ride off road. A BMW V8, shift-on-the-move transfer case, and many other refinements improved both on and off-road manners. In 2005, a "Sport" model was added to the line alongside the "Real" Range Rover, with a 400 HP supercharged option that dispelled any remaining myths about Range Rovers not keeping up with other SUVs on the pavement. True to tradition, it incorporates such an array of off-road features and abilities that it leaves its competitors in the dust or in the ditch.
Each successive update has assured that the Range
Rover remains the world's most capable vehicle. Although its luxury
features are famous and its on-road performance is continuously
improving, the thing that distinguishes Range Rovers from other luxury
SUV's in today's crowded market is their supreme off-road ability. The
unparalleled breadth of capability means it is never out of place
whether at the most exclusive City club or in the roughest back country
terrain.
For details of the changes that were made during the production of each model, see the Detailed Model Year Specs pages.
US Introduction and ModelsIntroduced in the UK and most other markets at its debut in 1970,
the original Range Rover sold so well that it was hard to get one for a
long
time, and the factory had little incentive to make improvements. Then
as today, the
vehicle was a special favorite in the deserts of the Middle East, where
its solid build and amazing off-road prowess were greatly appreciated
by those who could afford one.
The Range Rover did not make its official debut in the US in 1987,
seventeen
years after production began. Prior to that, examples were imported
periodically by various
private companies which were set up to process and "smog" them, so
Range
Rovers of earlier vintage are occasionally seen. This situation was
more or less remedied when the redesigned Range
Rover 4.0/4.6,
introduced
in the UK in 1994, came to the US in 1995, selling alongside the
Classic
for one year before completely replacing it. In June 2002, the New Range Rover (Mk III)
went on sale in the US as a 2003 model, with thousands of orders from
customers
before it even arrived. In mid-2005, the Range
Rover Sport was introduced as a 2006 model, with the supercharged
model in particular being in such high demand that there was an order
backlog of thousands.
Photo: Official
picture of Range Rover Sport equipped for 2006 G4 Challenge
Performance on and off Pavement
The Range Rover design concept was one of excellent performance on the pavement and superlative performance off road. In 1970, its acceleration and speed were superior to many conventional cars. As late as 1985, a diesel-powered Range Rover "Bullet" Record Breaker broke 27 diesel vehicle speed records, averaging over 100 mph for 24 hours. By the 1990's, although speed and acceleration had improved, they were not exactly a selling point, as competitors introduced more spritely SUVs that could leave a Range Rover standing at the traffic lights.
Off the pavement, however, Range Rover performance has always been nothing short of staggering, and is an eye opener to anyone not familiar with the vehicle. It runs circles around virtually any other 4X4, including many modified ones. Over the years it has maintained or even increased this edge, being one of the few actually designed from the ground up for serious off-road ability. Other manufacturers, knowing that most owners never take their vehicles off the pavement, developed low slung SUVs and stiff suspensions tuned for car-like handling. The Range Rover retained its soft long travel suspension, and even increased available ground clearance with adjustable air suspension.
Since 1987, many articles in Four Wheeler Magazine described the Range Rover as the best stock off-road performer available, with such quotes as "a well-driven Rover is nearly impossible to beat" (1988), "the best riding 4X4, period." (1990), and "stupendous off-road ability" (1994). The Range Rover won the Four Wheeler of the Year award by a whopping mitargin in 1989, and reigns supreme among stock vehicles in the magazine's "Ramp Travel Index" test of suspension flexibility, with a record score of 703 (compared with a 1996 score of 422 for its "J***" competitor). The same model's reported ramp or breakover angle was almost double that of its competitor. Car magazines dsometimes disliked the vehicle's soft ride and associated body roll, but used it to pull other SUVs out of the mud in their comparison tests.
The design of the Range Rover 4.0/4.6 was intended to improve pavement performance and handling to attract buyers from luxury car marques, while retaining supreme off road preformance. A new streamlined shape allowed faster, quieter highway cruising, and lighter axles with suspension refinements improved handling. Several new off-road features were also added and magazine comparison tests uniformly acclaimed its continued effortless superiority in that arena.
The even more radical redesign of the Mk
III Range Rover further improved off-road
capability while endowing the vehicle with truly car-like on-road
manners.
Independent suspension and a monocoque body gave the needed on-road
refinement,
while increased ground clearance, wheel travel, and innovative
cross-linked
air springs vaulted the new vehicle ahead of its off-road
competitors
yet again. In the July 2002 Land
Rover Owner International magazine "off-road-only" comparison test
report shortly after its introduction, the new Range Rover bested even
the formidable Land Rover Defender in off-road performance.
The most recent addition to the Range Rover stable is the Range Rover Sport. As the name suggests, this
model emphasizes sporty performance, but off-road prowess has by no
means been neglected. With its reduced bulk and 300 or 400 horsepower
engine choices, it is no slug on the tarmac. Off the pavement, it can
run circles around any other "Sporty" utility from Mercedes, Porsche
and the like. The sophisticated Terrain Response system first
introduced in the Discovery 3/LR3 is included, along with optional
locking rear diff, 4-wheel traction control, Hill Descent Control, and
a suspension that can be lifted, in extremis, 3 inches above the "High"
position normally used off road.
In 1972 the British
Trans-Americas Expedition Range Rover became the first vehicle to
travel
from the northern tip of North America to the southern tip of South
America,
including traversing the famous Darien Gap. In the 1980's the honours
included
winning the Paris-Dakar Rally and being the official vehicle in the
1987
Camel
Trophy in Madagascar. In the 1990 Great
Divide Expedition, a convoy of Range Rovers became the first
vehicles
to make a north-south traverse of the U.S. Continental Divide. The P38/4.0/4.6
Range Rover models have been involved in a number of official
expeditions
including one across the Australian Desert and the Land
Rover Trek in which Land Rover dealers competed in various special
off-road tasks using specially prepared 4.6HSEs.
They
were not used
for the Camel
Trophy, no doubt because it would make things too easy for the
contestants!! In 2003, soon after the new Mk III/L322/4.4 Range Rover
was introduced, specially equopped versions with mud tires, winches and
expedition racks were used in the newly inaugurated G4
Challenge (left), successor to the Camel Trophy. This was a
five-week trek across three continents, including a long stretch of
desert travel in the Australian Outback. In 2006, the new Range Rover
Sport is scheduled to compete in this event.
Expeditions more modest in scope are recounted in the Range Rover Expedition Reports
section of this website, including videos on the Tonopah & Tidewater Expedition
and the Lake Lahontan
Expedition. Another expedition retraced the Pony Express Trail across
Eastern
Nevada while others in the Mendocino
National Forest have pitted Range Rovers against other Land Rover
models. Additional Range Rover Desert Expedition
Reports can be found in the Desert
Exploration section and desert
photographs sections of these pages. Many primitive dirt roads have
recently been closed under the guise of environmental protection, so
Range
Rover owners who plan to take their vehicles off pavement should
educate
themselves about Environmentally
Responsible Off-Pavement Travel. They should also be
prepared for emergencies and carry appropriate tools,
spares and supplies.
Training in off-road skills, specifically oriented towards late model
Range Rover owners, is now available from such sources as Off Roving.com.
Range Rovers have always been distinguished by innovation in suspension design. The Classic Range Rover was able to use exceptionally soft springs, while retaining a 1600 lb payload capacity, by virtue of the Boge self-levelling strut fitted to the central A-frame link on the rear axle. This is, in effect, a variable rate self-adjusting air spring which provides a restoring force on the center of the axle to compensate for load, allowing very low spring rates to be used at the road wheels. This results in maximum possible traction on uneven terrain.
Why does a soft suspension give better traction? This is a
secret
that other 4x4 manufacturers and aftermarket suspension builders have
apparently
never learned. When a wheel droops even an inch or two on uneven
terrain,
that wheel is "unloaded" -- ie its ground contact force is reduced --
in
direct proportion to the stiffness of the spring and anti-roll bar (if
fitted). Any loss in ground contact force reduces available traction at
the wheel in question. With an open differential on the axle, traction
is lost at both wheels simultaneously.

Conventional and "lifted" 4x4s overwhelmingly use leaf springs or stiff
coils with anti-sway bars tuned for flat high speed cornering on
pavement
or supposed "heavy duty" use off-road. Aftermarket "upgrades"
invariably
include even stiffer springs, shocks, bushings and/or anti-sway bars.
The
net effect is a very stiff suspension that not only provides less
maximum
wheel travel (resulting in wheels lifting off the ground in very uneven
terrain) but much reduced traction even in mild off-road situations
requiring
only modest vertical wheel movements.
This is why the conventional dogma dictates that serious off-road vehicles must use "lockers" on the differentials to maintain traction. Lockers force both wheels to rotate at equal speed, transferring all the torque to whichever side has the grip. They therefore greatly increase stress on the drivetrain components, and have adverse side effects on steering control. On newer Range Rovers, any lost traction is restored through a sophisticated system of electronic traction control. This senses when a rear wheel starts slipping and pulses its brake, effectively transferring half the engine torque to the opposite, gripping wheel. The combination of soft suspension and electronic traction control is formidable. The system gently equalizes torque distribution to the two wheels, whereas the locker can suddenly transfer 100% torque to one wheel, breaking parts with notorious regularity.
Not unimportantly, soft suspensions also Tread Lightly and result in less environmental impact. The Range Rover's soft "magic carpet" ride also enables it to run circles around other 4X4's on the typical rough road or trail, where stiffly sprung vehicles are reduced to a bone-jarring crawl.
Secrets of Later Models' Off-Road Prowess
The redesigned Range Rover 4.0/4.6's
electronically controlled airbag suspension is another innovation in
4x4
underpinnings. Although slightly firmer than the early coil spring
design,
it is plenty soft enough to cause complaints about body roll. by
automotive
journalists. The same journalists, however, rave over its ability to
soak
up gaping holes in the road like a Mercedes negotiating speed bumps.
Axle
articulation in stock form easily outclasses other SUVs (except for the
Series II Discovery, introduced in 1999). The ability to raise the
vehicle
1.6 inches above normal provides more clearance for off road
use,
while conversely the body is lowered an inch in highway mode to
stabilize the vehicle. When it becomes
high centered, the suspension hoists itself above even the "high"
setting
to try and break it loose. The maintenance of constant height under all
load conditions is a boon for off road use when the vehicle is often
heavily
loaded. No sagging in the rear, or reduction in clearance. Also, the
progressive
nature of air springs reduces the chance of "bottoming out" when
hitting
a bump too fast.
In the Range Rover III model
introduced
in 2002, the designers debunked the
traditional assumption
that
independent suspension is unsuitable for serious off-road use. Careful
design
resulted in stupendous vertical wheel travel that easily bests any
other
production vehicle -- 10.75 inches in the front and 13 in the rear.
Off-road,
the air suspension is programmed to operate like a beam axle, so that a
rising wheel forces its opposite mumber downwards, maintaining
clearance.
This is achieved by opening valves that link each left air spring to
its
right hand opposite number, so that upon compression of, say, the left
spring, its air is forced into the right one. This also has the
effect
of reducing the effective spring rate to near zero, hugely increasing
the
available ground contact force and traction on the drooping wheel (see
above). A third benefit is the much softer ride achieved off road,
allowing
faster progress and lighter impact. A full 2-inch lift in off-road mode
gives 11 inches of clearance and reduces the spring rates.
Nobody can accuse the Range Rover Sport of having a soft suspension,
but it makes up for it in sophistication, as an off-road drive of it shows. The
tracrtion control, center and rear diff locks, hill descent control and
Terrain Response system make it hard to stop. Its suspension, like the
4.0/4.6, it has the "extended profile feature that senses when the
vehicle is grounded, and raises the suspension another 1.5 inches.
Beyond that, the driver can raise it another
1.5 inches by holding down the "up" button!
More information on Range Rover suspensions can be found in the Suspension
Details and Mods page; air suspension operation and mods are
covered in Repair
and Upgrade Operations.
Innovative suspension is not the only secret behind the Range Rover's legendary off-road prowess. The solid construction of the 14 gauge box section chassis (even thicker on the new model), the axle housings and linkages, and other underbody parts means the Range Rover will withstand exceptionally severe off-road treatment. The transfer case uses relatively high numerical gear ratios, enabling the use of lower numerical ratio gears in the axle differentials for extra strength. High underbody clearance provides extreme ramp or "breakover" angles (a measure of how acute the brow of a hill can be without scraping the central underbody or becoming "high-centered"). If the vehicle does become high centered, the electronic air suspension on later models senses this condition and raises the body even higher to set it free.
Drive along behind most 4x4s and you will see the rear shock mounts
hanging vulnerably well below the axle, in a perfect position to be
snagged
on rocks. The Range Rover's shock mounts are positioned so as not to
cause
such problems. Similarly, on most 4x4's the rear differential is in the
middle of the axle while the front diff is off to one side, effectively
reducing usable clearance over rocks and ridges since one or other
differential,
or a shock mount, is almost certain to hit something. The Range Rover's
differentials are both positioned in line, offset from the center, so
that
foot-high obstacles can pass straight under the vehicle.
Many other features distinguish Range Rovers, old and new, from SUVs designed mainly for looks. Mud deflectors are fitted to all the brakes, and mud flaps are standard on many models. The V8 has an exceptionally flat torque curve from very low speeds, giving good low speed crawling power, and the throttle has unusually long travel, for delicate adjustment in off-road situations. The handbrake operates on the driveshaft and locks all four wheels -- vital in tricky off road maneovering so you can get out and take a look at your predicament. The high seating position and short hood make it possible to see obstacles on the ground very close to the front of the vehicle. The transfer case differential automatically and progressively locks when it senses a difference in front-to-rear axle speed indicating slippage of a wheel.
On the 4.0/4.6 models, the automatic transmission can be locked in any gear while in low range -- a boon for off road control -- and shifting between high and low range is simplified by a new "H" gate single shifter design. Ground clearance is increased under the differentials, components are better tucked up between the chassis rails to give a cleaner underbody, and the air intake is further raised on diesel models for a dry air supply when fording. The V8 engine has undergone testing in extreme off-camber positions for extended periods, and prototypes driven for hours at high speed behind dust-making machines on dirt roads to test the filtration system which is designed to eliminate the ingress of dust into the cabin. The chassis is substantially strengthened, including radius arm mountings which are much less vulnerable to being knocked out of alignment by a hit from a rock. The fuel tank is in a more protected position and is designed to deform substantially under impact from the ground, without stopping the fuel pump from operating.
On
the Range Rover III, yet more
off-road
features were added. Wheel travel was increased to staggering levels,
combined with the innovative cross coupling of the air suspension. A
cleaner underbody with 11 inches of clearance in high profile has
Kevlar
protection
and very few vulnerable protruding parts; even the normally vulnerable
exhaust outlets are tucked up under the rear of the vehicle so they are
flush with the rest of the body. Other improvements include increased
approach and
departure
angles, more ground clearance, a torque sensing center
differential,
a shift-on-the move transfer case, a dual-program throttle tuned for
longer
travel in low range, power folding mirrors to avoid trees and other
obstacles,
a heavy duty front recovery loop, Land Rover's patented Hill Descent
Control, and All-terrain Dynamic Stability Control to prevent skids and
slides on
slippery surfaces. In combination with the clean underbody and
excellent ground clearance, all these features make the Mk III quite
unperterbed when the terrain turns awful. Most of these features are
incorporated into the Range Rover Sport
as well.
A Range Rover is one of the very few production vehicles that you
can
order with a winch -- the only
others I know of (aside
from lesser Land Rover models) are Hummers. (Try ordering J**p
with
one!)
Photo: Official
photo of winch-equipped G4 Challenge Range Rover Mk IIIs
These and other design characteristics make Range Rovers almost unique among modern 4x4's in being seriously designed from the ground up as true all-terrain vehicles.
Buying a New or Used Range Rover
Using a Buyer's Broker to purchase a new RR
Model Year Detail Pages:
Detailed information on every Range Rover model year
Used Range Rovers for Sale: Listings
right
here on Rangerovers.net
RangeRover
Extended Warranty Info Page
Range
Rover New & Used Financing Page
Range Rover Insurance Page
Comparison with Other SUVs
Range Rover Service -- Dealer and
Independent Shops
Life with a Range Rover
Ownership Experiences: Reports from
other owners
Range
Rover Lifestyle Accessories
Products and services that complement the Range Rover Lifestyle
Range
Rover 4.0/4.6 Model overview
Range
Rover Mk III Model overview
Range Rover Sport Model overview
SUV Choices: Comparing Range Rovers with
other SUVs
Technical Specifications
for all models
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