2008 Jaguar XJ6 D – Road Test
“This is Jaguar’s version of diesel luxury – beautiful isn’t it?
Models tested:
- 2008 Jaguar XJ6 D – $154,900
Looks, refinement and absurdly good fuel economy
Not much to dislike here – rear seat legroom could be more generous
CarAdvice rating: 
Model range: $154,900 to $234,900
Options: None
By – Anthony Crawford
When Jaguar released their famous E-Type in 1961 Enzo Ferrari called it “The most beautiful car ever made”.
Not only was it drop dead gorgeous (still is) but also, the E-Type was a genuine 150mph sports car, which retailed for thousands less than anything from Porsche or Ferrari at the time.
A TV commercial in the United States agreed with Enzo and described the car perfectly:
“This is no ordinary motor car, this is the Jaguar E-Type, a concept so beautiful it has been displayed in the Museum of Modern Art.
A concept so strong its forbears won the “24-hour Le Mans Grand Prix of Endurance “five times”.
It is what Bach was to music, what Rodin was to sculpture.
The Jaguar E-Type, the highest expression of automotive art”
But if you’re thinking, well that’s old news and Jags have been out-styled by the competition from Germany these days, then not only would you be part of a minority but you’re most probably a citizen of Germany!
That’s right. In 2007, the worlds biggest selling car magazine, German title, Auto Motor und Sport and 16,000 of their loyal readers, named the Jaguar XJ as the ‘Most Beautiful Luxury Saloon’ in the world. The victory was all the more sweet, given the competition from Audi, BMW and Mercedes-Benz.
Jaguar is a company steeped in eighty years of tradition and a lot of that time, on a racetrack.
The “forebears” the ad refers to, were the awesome “C” and “D-Type” Jaguar racing cars, which dominated Le Mans in the 1950’s. The magnificent looking D-Type in British Racing Green, held the fastest speed record down the main straight at 179 MPH (288km/h)! Remember we are talking mid-fifties.
You might also remember Jaguar’s convincing win at our own Bathurst 1000 in 1985, when a pair of pretty XJ-S’s dominated the great race with 1-3 finish.
Jaguar are still racing their cars and I couldn’t resist these shots of the XKR race machine. In a word – stunning.
So there you have it. An age old English car company with a history of building beautiful cars, be they road or track, merging old school style and luxury with new age, high tech materials.
Introducing the 2008 Jaguar XJ6 D. This is proof that Jaguar is still building great looking cars only this time it’s a diesel.
A Jag is unmistakeably a Jag whether you are into cars or not.
Apart from the overall shape remaining eerily similar to the original XJ6, which began life in 1968, it’s hard to miss the leaping Jaguar immortalised on the bonnet of the car.
There’s something quite special about driving a Jaguar too. It’s as if drivers around you are a little protective of the old girl. Time and time again, when merging into one lane (you know how it is in Sydney) a space miraculously opened up for the car, instead of the usual one finger salute and simultaneous lane blocking tactics, which appear to be mandatory practice in Australia these days.
For the first day or so, behind the wheel of the XJ6 D, I was content to amble around at limo slow speeds and soak up my fellow drivers admiration of the car.
But one thing Jaguar’s have never been is slow and I needed a change of pace.
Lurking beneath the bonnet is a seriously capable 2.7-litre V6 twin turbo diesel, that won’t quite fly you to the moon, but it will get you to where you want to go – quickly.
It’s no fat cat either. The XJ6 D like all XJ models has a body made entirely of aluminium, which keeps its weight down to a class leading 1659 kilos. That’s significantly lighter than the best from Germany.
Power from this engine is a modest 152kW, which pairs up nicely with a not so modest 435Nm of torque. If you compare this engine to the 3.0 Litre V6 petrol powered car, the diesel is way out in front.
Although maximum power for the 3.0 litre six is 16kW more than the diesel, that power is not on song until high up in the rev range at 6,800rpm. The diesel on the other hand is reaching the high notes at 4000rpm. Far more useable and a lot more fun!
But the really useful number is 1900rpm. That’s where you get all 435 Newton metres coming into play.
I know this engine well. It was a Ford/PSA joint project that produced what remains one of the finest diesel engines in the world today. Peugeot dropped it into their flagship 407 SV HDi and more expensive 407 Coupe for good reason!
I’ve got to say though; I was more than a little curious as to how Jaguar would handle diesel power in one of its flagship sedans. After all, the XJ series Jags are renowned for blending refinement and driveability in a luxury package.
I’m not saying that the 2.7 litre twin turbo isn’t refined, because it is. But is it refined enough for a Jaguar engine bay?
Over 1500rpm you won’t be able to pick this Jag as a diesel powered car. Sounds more like a well sorted six. But on start up and at idle, slight diesel clatter is evident but that’s the case with ALL premium oil burners these days, including those deployed across the German marques. It’s probably the one and only remaining advantage for petrol power, given the responsiveness of twin turbo diesels.
No offence to Peugeot, but the Jaguar is by far the quieter ride of the two cars using the same engine. And so it should be, at nearly three times the purchase price.
There are a few well-engineered reasons for that. CATS (Computer Active Suspension System) automatically lowers and levels the suspension on the Jaguar, providing a soft ride when cruising or a body roll free experience when you want to get moving in the twisty bits.
The idea that a large and luxurious car could be thrown into a corner as though it were a Lotus sports car was invented by Jaguar and the other brands have since followed suit.
The XJ6 D keeps that concept well and truly alive. Grip and balance through high-speed bends is remarkable. You can still drive these cars like a genuine Sports GT.
While the ZF six-speed auto transmission provides almost seamless shifts as you so rightly expect in a flagship Jag, I am not a fan of the traditional J-Gate shift selector. It’s old fashioned and time to move on.
Cabin noise inside the diesel cat is class-leading quiet. Squeeze the throttle, and the XJ6 D powers up with just a hint of subdued growl. Nice.
Jaguar has taken noise suppression to new heights on this car with special acoustic absorption on the underside of the bonnet, airtight seals between the engine and the bonnet and a double skin bulkhead structure.
And that’s not the half of it. Even the glass is acoustically laminated so as to reduce traffic noise etc.
When you buy a Jaguar XJ, you expect superior ride quality. That’s been a core brand value of the company, forever. It simply doesn’t matter that it’s a diesel. Buyers will expect Jaguar to have dealt with the fact that diesel engines generate higher levels of vibration than petrol engines. And they have.
If you purchase an XJ6 D, you will be driving in the only car in its class, to have electronically controlled active engine mounts, which cancel out 90% of engine vibration at idle as well as those from poor road surfaces.
It’s not Jaguar specific though. Similar systems operate on board the Hyundai Veracruz (large SUV currently on sale in the US), Lexus RX350 and the current Toyota Camry.
I’d have to say that my favourite in the XJ series cars would be the 291kW 4.2-litre supercharged petrol V8 in either the XJR or Super V8 specs which both look superbly aggressive. If James Bond ever got married and had a family, he would drive a Super V8 LWB.
But there’s a problem with the supercharged eights. Fuel. An insatiable thirst for the stuff. I suppose it doesn’t matter to some but the only wealthy folks I seem to know guard every dollar as though it’s their last!
That’s why the XJ6 D, which will run the 0-100km/h sprint in 8.2 seconds while sipping the heavier brew at the rate of 8.1 litres/100kms, makes sound economical sense to these folks. And for the record, the Jaguar XJ6 D may just be the world’s most economical luxury saloon.
In 2006, a UK team drove the diesel Jag from John O’Goats (the northern most place in Scotland) to the Lands End (the southern most tip of England) at an average speed of 70km/h on one tank of diesel. This is the extraordinary part. That’s a distance of 1,356 kms on a single tank of diesel! Turns out though, that the car wasn’t empty and went on to cover a phenomenal 1,609 kms.
And don’t think for one minute that the entry-level diesel fuelled Jaguar doesn’t come well sorted with luxury kit. That inventory, is simply too vast to itemise here in this review, but here’s the A-list;
19-inch alloys, Park Distance front and rear, Driver and passenger electric seat, electrically adjustable steering column, Satellite Navigation, Bi-Xenon headlamps (that’s high and low beam), Automatic Headlights on/off, DVD video, Metallic Paint, Electric Park Brake, Power adjust foot pedals, Power door mirrors with power, Electric anti-glare rear view mirror, Electric sunroof, Two-zone climate control, 6-disc CD stacker with digital sound processor and a whole lot more!
The interior is just what you expect from an English luxury carmaker. Acres of beautifully polished burl walnut trim and sheets of high quality leather, which smells divine.
The English do wood and leather like no other carmaker. They have no peers.
At this stage the XJ6 D is only available in the Short Wheel Base body, which is fine if you’re six-foot, and under. Anything over that and legroom may be compromised.
Both front and rear seats rate high on my comfort chart while the boot is substantial but quite shallow.
“Jaguar’s XJ6 D redefines diesel luxury – a superb drive”
CarAdvice overall rating:
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How does it go: 
2008 Jaguar XJ6 D specifications
Engine: 2.7 Litre twin turbo diesel with intercooler
Power: 152kW
Torque: 435Nm
0-100km/h: 8.2 seconds
Top speed: 225kph
Fuel tank: 85L
Fuel consumption (combined): 8.1 L/100kms
Kerb weight: 1659 kg
CO2 emissions: 214g/km (low)
Drive: Rear wheel drive
Turning Circle: 11.7m
