Last week we brought you news of a one-off lime green Jaguar XKR that the British automaker was set to debut at the Goodwood Festival of Speed. As promised, the car did make an appearance and run the historic Goodwood Hillclimb and now we have all the details (as well as a full gallery of juicy photos) to share.

Under the lime-green hood, output from the XKR’s supercharged 5.0-liter V8 engine was further enhanced from 510hp to 530hp. Torque climbed even more rapidly from 461 ft-lbs to an impressive 516 ft-lbs, enabling a 0-60 mph run of just 4.6 seconds!

Additionally, the Goodwood Special XKR sports a set of dark-colored 21-inch wheels with a lowered ride height and dark “satin graphite” paint for the mirrors, window surrounds, grilles and headlight casings.

“The XKR ‘Goodwood Special’ has been developed as a one-off to explore the harder side of the XKR’s character and allow our engineering team to explore some performance boundaries,” said Mike O’Driscoll, Managing Director, Jaguar Cars. “The Festival of Speed gives us the opportunity to have fun in a high performance car without all the practical and legal requirements of driving on the road getting in the way!”

Along with the Goodwood Special XKR, Jaguar also ran several other vehicles at the hillclimb, including the a 1957 Le Mans winning long-nose D-type, a Le Mans-winning Jaguar C-Type, the one-of-one Jaguar XJ13 race car and the 225mph Bonneville XFR.

GALLERY: 2010 Jaguar Goodwood Special XKR

[Source: Carscoop]

If we told you Jaguar built a special one-off version of the new XKR grand tourer for the Goodwood Festival of Speed and painted it green, you would no doubt assume it would be a typically-British green. You know, British Racing Green, a color so dark it looks black in the shade.

Oh no… the one-off 2010 Goodwood Special Jaguar XKR is lime green. How uncouth!

Jaguar hasn’t released all the details on this special edition, but expect output from the supercharged 5.0-liter V8 to exceed the stock car’s 510 ponies. Jaguar also promises it will be much louder than stock.

Additionally, the Goodwood Special XKR will get a set of dark-colored 21-inch wheels with a lowered ride height and dark “satin graphite” paint for the mirrors, window surrounds, grilles and headlight casings.

“The XKR ‘Goodwood Special’ has been developed as a one-off to explore the harder side of the XKR’s character and allow our engineering team to explore some performance boundaries,” said Mike O’Driscoll, Managing Director, Jaguar Cars. “The Festival of Speed gives us the opportunity to have fun in a high performance car without all the practical and legal requirements of driving on the road getting in the way!”

Jaguar will present the car at the Goodwood Festival of Speed on July 3-5th alongside the 1957 Le Mans winning long-nose D-type, a Le Mans-winning Jaguar C-Type, the one-of-one Jaguar XJ13 race car and the 225mph Bonneville XFR. All of the vehicles will partake in the Goodwood HillClimb.

Official release:

To help promote the launch of the Infiniti brand in the U.K., the luxury Japanese automaker will bring its stunning Essence Concept to the Goodwood Festival of Speed in September. Alongside the Essence will be Infiniti’s brand new G37 Convertible. Sadly, Infiniti explicitly points out in its press release that while the G37 will be on sale this year in the U.K., the Essence will not.

The Essence Concept first debuted at the Geneva Auto Show earlier this year and was designed to help celebrate the brand’s 20th anniversary. Not only does it look stunning, but it’s an engineering marvel, boasting a 600hp hybrid powerplant. Under the hood of the Essence sits a 440hp direct-injection twin-turbo 3.7-liter V6, which is paired with a 140hp electric motor.

Lucky Goodwood spectators will be able to witness the first-ever public drive of the Essence Concept as it takes on the famous Goodwood Hillclimb.

As mentioned, Infiniti continues to hold its position that the Essence will not see production, but with Lexus set to launch the LF-A, perhaps Nissan’s luxury arm will reconsider.

GALLERY: Infiniti Essence Concept

Official release after the jump: