Thursday, September 1, 2011
Trail Report: Whipsaw
History: Farewell B



Review: 2011 Ford Explorer



Trail Report: A Rubicon in the Moab
Monday, January 17, 2011
History: Military Ruggedness for the Average Man


Thursday, July 9, 2009
Comparison: Luxury SUV's Offroad

Sport Utility Vehicles. They are supposed to be all things to all people. Original examples evolved from 4WD vehicles that were capable of creating their own trail through rough terrain. Today, this segment has branched out into several different genres. The standard soccer mom SUV, the proper 4x4-geared SUV, the crossover and mini-SUV and finally, the luxury sport SUV.
This latter species is an odd one. Manufacturers who build these vehicles know that their wealthy owners will be much too scared of a little leftover winter sand on the road, let alone take them off-road. So the builders design these SUVs to handle like cars, and carve up tarmac corners instead of washed-out back roads. But they still build these luxury liners with AWD systems and even the most sports-oriented versions give the owner approach and departure angles in their spec sheets.
The whole train of thought behind an SUV is that these vehicles offer safety in adverse conditions. Many manufacturers also market these vehicles as passports to outdoor adventure, but will they actually survive in the wild? We got four different examples of these luxury SUVs and took them out into the great outdoors to see how they stand up against mother nature. Our trusty steeds in this experiment would be the Volvo XC90 R, BMW’s new diesel-powered X5, Infiniti’s FX50 and finally, the Land Rover LR3 HSE. All high-performance rides with the looks to match.
Infiniti FX50

Lets start with the highest performance version of these vehicles, the FX50. This is a truck that in reality is a high-performance sports car in SUV clothing. Its on-road abilities are truly amazing, and it could very likely make a couple of performance coupes look foolish on a track. However, the designs that make it a beast on the road should hinder the vehicle once the safety of tarmac is lost. The biggest weakness is the 21-inch wheels that are wrapped with 45-series all-season tires. When it comes to rough roads, this setup is a definite risk. Despite this, Infiniti lists the FX50’s approach and departure angles in the specs for the vehicle, and for a something so low to the ground (another hindrance in the back country) the angles are respectable.
The driving test proved the FX50 quite confident on gravel roads, looking out for rocks and large potholes, and Nissan's great “RWD first” AWD system makes it a blast on clean winding gravel roads. It is clear that the suspension is tarmac oriented, so the FX50 does not feel like it is firmly planted on loose surfaces. If you decide to leave the beaten path, caution needs to be maintained, and only light off-road driving can be accomplished due to the vehicle's low ride height. Another problem we ran into was the strength of the centre differential. Under heavy load or when wheelspin began to be a factor, the centre viscous diff would overheat, leaving you with only RWD. Also, the absence of any underbody armour proves again that any off-roading in the FX50 should be kept to light terrain.
Volvo XC90 R

The XC90 is marketed much more to the adventurist than, say, the Infiniti or even the BMW. The name itself stands for Cross Country, so the ride height is higher, approach and departure angles are increased and there is even some skid plating mounted underneath, even if some is more for show. In terms of visibility and seating, the XC90 ranked top of our list. However, as Volvo prides itself on the on-road sportiness of the XC90, the 20-inch wheels mounted on our “R” version are risky, although our tester was set up with snow tires, giving us much more traction.
On the driving test, it had excellent driving characteristics on gravel roads, and the fear of damage from debris was not as high as the other vehicles, making for a more stress-free drive. It did tend to understeer when it got slippy. Off the beaten track, the XC90 proved remarkably confident despite its low height. The increased grip from tires and manoeuvrability of the XC itself had us heading into terrain we didn’t think was accessible. However, much like the FX50, the centre viscous diff proved to be a weak point as it, too, required cooling, leaving us with only FWD while in the field. All in all, we were quite impressed with the Swede, as it is capable of handling light-to-medium terrain, while being a sporty on-roader. Using the smaller 17-inch wheels available would make the XC an even more competent soft roader.
BMW X5 35d

BMW says that the X5 is just as good as handling a corner as the 3-series sedan. Having had an X5 on a racetrack, I can attest to this fact, as it is a force to be reckoned with. BMW has now released the turbo diesel version of the X5 in Canada, something I am ecstatic about as it now adds great fuel efficiency to the X5’s equation. But what about its off-road abilities? At 18 inches, the wheels are the smallest of the group and offer decent protection in a 55-series tire, which also turned out to be a snow tire on our tester. Like the Volvo, the X5 has some underbody protection, although its low plastic overhangs similar to the FX50 will have drivers keeping the approach and departure angles to a civilized level.
On our test drive, the Bimmer soaked up the gravel road with absolutely no problems, and remained neutral handling. It did have some of the stiff suspension float like the Infiniti produced. While the vehicle height had us on edge through the rough stuff, the Bimmer's low-range capability, and the strength of the diffs, meant that the drivetrain never experienced any problems no matter how sticky things got. While it was ideal to keep travel to mostly flat terrain, its capabilities were truly impressive, while the diesel always meant we had a good range of torque on demand.
Land Rover LR3 HSE

Now here is a special case. Land Rover has been the epitome of off-roading since the sixties, and the icon of any adventure expedition on any continent. With the Series Landies not in production, and very few Defenders making it to our shores, Land Rover has gone from farmyard worker to Military Recce vehicle, now ending up as a luxury vehicle driven by soccer moms and hockey players. So the question has to be, has Land Rover lost its off-road abilities that made the brand the most famous of any adventurer? NO!
While the LR3 looks more at home at the end of a red carpet, it still possesses the ability to get muddy. What makes it different from the others is its drivetrain. While the Volvo, BMW and Infiniti all use a standard clutch pack centre differential, the LR3 features a two-speed transfer case utilizing both high and low gearing, with locking centre, and optional locking rear, differentials. Land Rover has also added airbag suspension to raise the ride height for better ground clearance. Match this with a plethora of off-road-based electronics, and it is instantly apparent that Land Rover has not forgotten where it came from.
As you would expect, light and medium terrain come at ease with all these options. When it comes to hard terrain, the LR3 still remains competent, even if its limits are now being challenged. At this point, the same trouble of body overhangs and ground clearance begin to hang up the LR3. So, impressive off-road skill for such a luxury SUV to be sure. However, for these abilities, the Land Rover falls far behind the on-road abilities of the other three.
Conclusion
After looking at four different luxury SUVs representing four different manufacturers built in four different countries, our conclusion may come as a bit of a surprise. The single biggest disadvantage to traveling off-road with these vehicles is the bodywork and tires. Taking these SUVs into the wild is like asking a painter to go to work in a tuxedo. You have to be willing to sacrifice scrapes down the doors and gouges in the bumpers, and if the size of the brakes permit, a smaller set of wheels and larger tires that will protect against punctures.
The truth of the matter is that for those who want to get out and explore the great outdoors, the terrain traveled is usually considered light if not just a gravel road. While the off-road capabilities of these vehicles are mostly medium-to-light, they are more than adequate for getting to 90 percent of the destinations that most outdoor enthusiasts desire. Obviously, if you are a dedicated wheeler, a more single-purpose, modified vehicle that won’t have you in tears when it rubs up against a tree, will be ideal. But for those who need to get back to work on Monday, and enjoy a luxury environment and sports car-like performance, then we found that a luxury SUV is well capable of doing it all.
The Specs
Infiniti FX50
Engine: 5.0L V8
Wheelbase/Track: 2,885/1,680 mm
Ground Clearance: 187 mm
Approach Angle: 28.8 degrees
Departure Angle: 20.9 degrees
Final Drive: 3.538
AWD System: Viscous Centre Differential-based full-time AWD
Curb Weight: 2,075 kg
Tires: 265/45R21
Electronic Aids: Only on-road safety aids
Price Base/As Tested: $51,800 (FX35)/$59,900
Volvo XC90
Engine: 4.4L V8
Wheelbase/Track: 2,857/1,634 mm
Ground Clearance: 218 mm
Approach Angle: 28.0 degrees
Departure Angle: 25.0 degrees
Final Drive: 3.33
AWD System: Electronically-controlled multi-plate wet clutch-based full-time AWD
Curb Weight: 2,053 kg
Tires: 255/40R20
Electronic Aids: Only on-road safety
Price Base/As Tested: $48,595/$68,295
BMW X5 35d
Engine: 3.0L I6 Diesel
Wheelbase/Track: 2,933/1,650 mm
Ground Clearance: 210 mm
Approach Angle: 25.0 degrees
Departure Angle: 23.0 degrees
Final Drive: 4.44
AWD System: Electronically-controlled multi-plate wet clutch-based full-time AWD
Curb Weight: 2,370 kg
Tires: 255/55R18
Electronic Aids: Hill Descent Control
Price Base/As Tested: $58,200/$62,200
Land Rover LR3 HSE
Engine: 4.4L V8
Wheelbase/Track: 2,885/1,613 mm
Ground Clearance: 240 mm
Approach Angle: 37.2 degrees
Departure Angle: 29.6 degrees
Final Drive: 3.73 – Transfer case Low/High: 2.93/1.00
AWD System: Two-speed electronic transfer gearbox, shift-on-the-fly capability with electronically-controlled variable-locking centre and rear differentials
Curb Weight: 2,629 kg
Tires: 255/55R19
Electronic Aids: Terrain Response System, Traction Control, Hill Descent Control, All-terrain dynamic stability control.
Price Base/As Tested: $53,900/$64,200
Review: Jeep Grand Cherokee Diesel

With the introduction of the updated 2011 Jeep Grand Cherokee signaling in a new era for the Cherokee, I thought I’d take one last look Jeeps flagship for its last year of production. And while the new vehicle offers a fresh new look, it’s easy to say that the current Cherokee has withstood the test of time gracefully. It’s still a good, modern looking vehicle that will certainly appease the eye of customers well into its final stretch.
The vehicle I had in my possession was the CRD diesel powered Cherokee. And while the North American public comes to grips with the new influx of alternatively powered SUV’s currently flooding the market, the Cherokee CRD has been proving itself for some time now. A product of the short-lived Daimler-Chrysler project, the 3.0L Mercedes built diesel V-6 was one of the best outcomes of the doomed merger. Built in Berlin and benefiting from Mercedes’ Bluetec development, this common rail turbo diesel that is shared with Mercedes and Dodge Sprinter vans, represents the jewel of the Cherokee. Like most modern diesel powered SUV’s, you are treated to V-8 power and performance with the added bonus of V-6 Sedan fuel efficiency. Meantime, as part of the Bluetec R&D project, this engine purrs along quietly, emits no smoke under load and no sulfurous smell.
While Hybrids are making an impressive mark on the industry, these are the days of the diesel. The diesel advantage of power, handling, fuel efficiency and versatility so far out weigh the ever-advancing Hybrids. But who wants to take a hybrid off-road? Thus we have the Cherokee CRD, a vehicles who’s sole marketing is based around being a great kid and grocery hauler, while also being Trail Rated, and ready for anything the environment can throw at it.
While its on-road manners are a little on the soft and squishy side for me they are decent nonetheless. However it’s off-road where the Cherokee seems most at home, trudging up a mountainous trail. With a solid rear-end, Quadra-drive II 4WD system with electronic two-speed transfer gearbox and optional Limited Slip Diff in the rear, the Cherokee really does love to play in the dirt.
While the drivetrain, looks and abilities of the Cherokee CRD motivate to get out and have fun, the interior still leaves something to be desired. The over use of cheap plastics as well as the material used in the seats will have the driver constantly trying to not to slip out of place give the interior a low quality feel. As my vehicle came with a $53,000 price tag, I would have a hard time party with such expense. However, don’t let the price get you down. With Chrysler going into bankruptcy, and with only a year left until the new design starts showing up in showrooms, there are huge savings being passed on to the customers during these hard times. Pricing out this same vehicle can yield a $10,000 savings already. So that cheap looking interior isn’t looking so bad anymore is it?
Specs:
MSRP: $32,140
Price as tested: $52,195
Layout: Front Engine – 4WD
Engine: 3.0L V-6 Common Rail Turbo Diesel
Transmission: 5-Speed Automatic with 2-Speed Transfer case
HP: 215
Torque: 376
Brakes: 328 mm-front Disc – 320 mm rear Disc
Curb Weight: 4,724 kg
Towing Capacity: 3,500 kg
0-100 km/h: 7.5 sec
Fuel Economy (city/hwy): 12.0l/9.0L