• Jan 12th 2009 at 1:58PM
  • 22
Click above for high-res image gallery of the Jaguar XFR Bonneville car

In its spare time while reinventing the company and settling in with a new owner, Jaguar's boffins somehow found time to take their new XFR to the Bonneville Salt Flats for a top speed run last November.

The Paul Gentilozzi-driven XFR had been modified with the appropriate safety gear (roll cage, fire suppression system, etc.), along with a sizable low-mounted rear spoiler and a derestricted ECU that allowed the supercharger to yield around 600 horsepower thanks to a bit more boost. So-equipped, the 503-horsepower sedan blew through the double-ton to top out at 225.675 miles-per-hour, solidly trouncing the previous Jaguar land speed record of 217.1 mph set by an XJ220 at Nardo back in 1992 with Martin Brundle at the wheel. For reference, the standard XFR is electronically limited to 155 mph.

Incredibly, the Bonneville run was completed on stock Michelin Pilot Sport 2 tires, and the Rocketsports-prepared XFR was still registering a bit of wheelspin at that speed.
Check out the high-res, high-speed gallery below and the press release after the jump.

UPDATE: Video of the XFR in Bonneville added after the jump.

Live photos copyright ©2009 Drew Phillips / Weblogs, Inc.

[Source: Jaguar]



12 January 2009


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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    • 1 Second Ago
      • 6 Years Ago
      Goes like a scalded cat...
      • 6 Years Ago
      And with this news, I see European tuners perking their ears, making plans for modifying this car similarly and making boatloads of cash. I'm quite surprised it only took 600hp (only 20% more power) and some simple aerodynamic tweaks (and the chip too) to achieve 225. Incredible. And with stock gearing.

      Why, then, is the ZR-1 top speed less than 210?
        • 6 Years Ago
        Right! I forgot about the amount of downforce the ZR-1 has to generate. I imagine that it would be a bit more difficult to tweak the aerodynamics on that car, it seems that its whole body was designed for that!
      • 6 Years Ago
      This car is bad ass
        • 6 Years Ago
        Tell me about it...that's one fast cat!
      • 6 Years Ago
      I kinda like it with the eyeliner (black tape covering the hood gap)
      • 6 Years Ago
      A moderately modified saloon going that fast?! Extremely impressive.
      • 6 Years Ago
      That's a tremendous speed for only 600 hp!!! The body mods must have significantly reduced drag because 600 hp on salt won't give you the same speed as on pavement (salt being more difficult to achieve speed on). This car gets a lot more mile-per-hour-per-hp than the Viper by good margin (another 600hp car recently run on salt thrown in for comparison).
        • 6 Years Ago
        The use of all that speed is that you can go 225 mph at Bonneville. For those that care about straight-line speed, I think it would be fun. If I had a Veyron, etc. you bet your ass I'd take it to the flats.

        Its like taking a GT500KR to the drag strip. Or an Elise around a track. If the qualities of the car match your interests, you should do it at least once.

        I don't play basketball every day either, but that doesn't mean I don't own a pair of court shoes for the off-chance.

        • 6 Years Ago
        It shows how far Jaguar has come. What once took a special effort and a supercar to achieve has now been done by modding an existing vehicle in their lineup. It stands as an engineering achievement and to show that the mechanicals of the car can handle some extreme conditions.
        • 6 Years Ago
        I'd imagine it has a lot to do with the width of the tires. Vipers use steam rollers which are hard as hell to push through salt.
        • 6 Years Ago
        What use is all that speed when the speed limit is 75 in most states?
      • 6 Years Ago
      I was wondering what Gentilozzi was up to since the reunification.
      • 6 Years Ago
      What's new Pussycat?
      • 6 Years Ago
      Stock Michelin tires? I thought the XFR will have Pirelli tires.

      I hope Rocketsports Racing will race a new Apex Motorsports-built Jaguar XKR GT3 in the SCCA Speed World Challenge series. That XFR looks very nice with the new AJ-V8 Gen III motor.
      • 6 Years Ago
      Hehe maybe it should be called a cheetah...

      • 6 Years Ago
      Bad ass, but why do they limit the speed like that? if im gona buy a car that can go 225 mph i want a car that can go 225 mph.
      • 6 Years Ago
      wooo doggy! I mean kitty.
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