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Jaguar XF-R is officially the fastest Jaguar ever at 225mph

 Jaguar XF-R is officially the fastest Jaguar ever at 225mph
Jaguar XFR prototype at Bonneville Salt Flats

Jaguar has just announced that their Jaguar XFR prototype is the fastest Jag ever produced. The XFR, a 510 hp supercharged version of the XF, hit 225.675mph (363.188 km/h) at the Bonneville Salt Flats in Utah.

Previously, the fastest Jaguar on record was the XJ220, which climbed to 217 mph (350 km/h) in 1992. At that time, it was also the fastest production car on record, until the McLaren F1 came along in 1994. The McLaren reached 240 mph (386 km/h) at Nardo, the same track where the XJ220 turned out its record.

The XFR is pushed by the all-new third generation of the AJ-V8. Behind the wheel was Paul Gentilozzi, owner of Rocketsports Racing. He won five Trans Am series victories with the XKR from 2001 to 2006.

Modifications to the car were minor, with some aerodynamic work and safety features added to make the car suitable for a Bonneville run. Additional horsepower was gained through a remapped computer, touched up air intakes and exhaust, and retuning the supercharger. The six-speed automatic transmission was untouched, gear ratios left the same, and internal engine components went unaltered.

The new AJ-V8 engine is a 5.0-liter model getting 510PS and 625Nm of torque. The XFR uses the engine to get to 60mph in 4.7 seconds. Top speed of the production model is electronically limited to 155mph. You can push the accelerator down to get from 50 to 70mph in 1.9 seconds.

The Jaguar XFR still has a ways to go to become the fastest production car. That title is held by the Shelby SuperCars' SSC Ultimate Aero TT, which accomplished 256.18 mph (412.28 km/h) on a closed stretch of highway in West Richland, Washington.

Source: Jaguar
Published Jan 12, 2009 12:58 pm By Zack Newmark

NEW SUPERCHARGED XF IS OFFICIALLY THE FASTEST JAGUAR EVER AT 225MPH

Jaguar today announces that during a secret speed trial at the legendary Bonneville Salt Flats in Utah, an XFR prototype recorded a stunning top speed of 225.675mph (363.188km/h), making it the fastest Jaguar ever.

The car - powered by the all-new AJ-V8 Gen III engine - beat Jaguar's previous speed record of 217.1mph (349.4 km/h) set in the XJ220 in 1992.* Paul Gentilozzi - the owner of Rocketsports Racing who successfully led the Jaguar XKR to five series victories between 2001 and 2006 in the Trans Am series in the USA - drove the car on the record-breaking run.

Running with minor aerodynamic and safety modifications to meet the requirements for a Bonneville run, the 225mph top speed was achieved with additional horsepower liberated by a remapped ECU, a modified air intake and exhaust system and revised supercharger settings. No internal engine components were changed and the six-speed automatic transmission was standard, including the gear ratios.

Mike O'Driscoll, Managing Director, Jaguar Cars said: "The all-new supercharged 510bhp XFR - and XKR - add a thrilling new dimension to the Jaguar line-up. We have sharpened the R models, fine-tuning them to deliver a totally focused experience for driving enthusiasts, with the new AJ-V8 Gen III engines delivering refined power and performance and unmatched efficiency.

"This sharper edge - the quicker steering rack, outstanding grip and stability and improved stopping-power - has been achieved by using advanced Jaguar technologies such as Adaptive Dynamics (the latest in computer-controlled suspension and traction control), a new electronic Active Differential Control and significantly uprated brakes."

Paul Gentilozzi added: "During my career, I've raced worldwide from the southern tip of New Zealand to Le Mans. Along the way, I have been privileged to drive and own so many exciting cars but I've never driven one that was as exciting to drive fast as this Jaguar."

The new XFR - the first XF to carry the ‘R' badge - defines Jaguar's most performance-focused models. Powered by an all-new supercharged 5.0-litre V8 engine developing 510PS and 625Nm of torque, the XFR can accelerate from standstill to 60mph in just 4.7 seconds (0-100kph in 4.9 seconds) and is capable of reaching an electronically limited 155mph. More relevant in everyday driving, an excellent indicator of the XFR's great flexibility is the time it takes to accelerate from 50-70mph - just 1.9 seconds.

High-speed runs have become indelibly etched into the history of the Jaguar marque. Next year marks the 60th anniversary of the Jaguar XK120's record-breaking 132.6mph run set on 30 May 1949 on a deserted stretch of motorway near Jabbeke in Belgium.

The new XFR demonstrates Jaguar's commitment to delivering exhilarating performance and outstanding dynamics for the driving enthusiast - the ‘Fast' part of the Jaguar ethos of designing, engineering and manufacturing 'Beautiful, Fast Cars'.

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Comments (18)

dbehmoaras
Owned.
Jul 2, 2009 3:49 am
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Xanavi23
Jesus christ, that was stupid of me...lame.
Jan 14, 2009 5:05 am
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tom43
Sorry, but you can´t go 363km/h in a 4-door saloon below 650hp. So this car is in my eyes heavily modificated!
Jan 13, 2009 4:55 pm
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Xanavi23
Again, the article up top states that the mechanics of the car were essentially stock, it only had aerodynamic modifications. This is great for Jaguar, its good to see them firmly back in the game.
Jan 13, 2009 12:15 am
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unknownuser
Dude, read the article properly: "additional HP was gained" as in no longer 510; as in no longer stock! According to Autoblog, HP figures were around the 600 mark.
Jan 13, 2009 12:40 am
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howe2002
Read my man, read. "Additional horsepower was gained through a remapped computer, touched up air intakes and exhaust, and retuning the supercharger." Re-tuned, re-mapped, touched-up. Not quite stock.
Jan 13, 2009 1:29 am
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ubercool
This new XFR is quite some machine, drop dead gorgeous and insanely fast aswell. Keep up the good work Jag.
Jan 12, 2009 8:56 pm
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joshg_5
Bump that!
Jan 13, 2009 7:47 am
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mortz
wow faster than the xj220, wish they made a new super car like like the 220, its about time
Jan 12, 2009 8:25 pm
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MTC
What if they put the mods in the options list?
Jan 12, 2009 7:29 pm
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Joe_Limon
that would be cool.
Jan 12, 2009 8:01 pm
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Joe_Limon
awe, to bad it wasn't a stock XF-R, it woulda been nice to have it boasting a higher top speed then the V10 R8
Jan 12, 2009 7:06 pm
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Airbag
Definitely agree with Kepe, what a pointless exercise! If it were totally stock, I'd understand, but this is a ridiculous stunt. XJ220 forever!
Jan 12, 2009 7:00 pm
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Xanavi23
It only has some minor aerodynamic mods. Its mechanically stock. Read my man, read.
Jan 13, 2009 12:13 am
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dbehmoaras
@Xanavi: "Additional horsepower was gained through a remapped computer, touched up air intakes and exhaust, and retuning the supercharger." Read, my man. Read. A little help does a lot. I agree with Kepe.
Jul 2, 2009 3:47 am
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swifthead
agreed with Kepe
Jan 12, 2009 6:48 pm
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Kepe
Since this isn't an actual production model, I'd still say that the XJ220 is the fastest Jaguar...
Jan 12, 2009 6:25 pm
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great_supercars255
wow thats fast for a jag
Jan 12, 2009 6:19 pm
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