Jaguar RSR XKR GT

From a production car, the Jaguar XKR makes an excellent racecar.

“The Jaguar XKR is exceptionally strong and rigid, and the construction method is in advance of the conventional steel stamping that we see in cars today,” explained Paul Gentilozzi, RSR team owner. “That allows RSR to build a lighter, stronger, stiffer racecar. Also, the basic aerodynamic design of the XKR has a low drag coefficient and more than sufficient downforce.”

The GT class features production-based cars modified as allowed by the Automobile Club de l’Ouest (ACO) rules. “There are very specific limitations. We use what we call in the industry, the Body-In-White. That is the basic skeletal structure, the sub-frames and frames from the original production car. We started our GT car with a real Jaguar XKR, this is not a panel built or fabricated car. We are using all of the aluminum skeletal structure of the car, the production doors, roof and deck lid.”

The body work features a design that is based on the Jaguar XKR and was completed in the Jaguar Advance Design Studio headed by chief designer Ian Callum. The body has undergone intensive computational fluid dynamics work, know as CFD, by the Jaguar aerodynamics department. Information from the CFD was then incorporated into the finished body work which was made in clay at the RSR facility. Over 1100 man hours were spent during the clay process. The carbon fibre composite body work was moulded and produced by a local company in Michigan and conforms to the ACO guidelines.

“The end result is a GT car that contains the DNA and the spirit of the Jaguar Design Department and the production car,” comments Gentilozzi.

  • TECHNICAL HIGHLIGHTS

    CHASSIS
    Jaguar XKR bonded and riveted Aluminium monocoque, with RSR steel reinforcements and safety structure.

    ENGINE
    Jaguar AJ133 5.0 Litre V-8

    TIRES
    Yokohama racing slicks

    ENGINE MANAGEMENT
    Bosch

    DATA AQUISISTION
    MoTeC

    SPARK PLUGS
    Bosch

    BRAKES
    Brembo 6 Piston Front Calipers on 380mm discs / 4 Piston Rear Calipers
    on 350mm discs

    SHOCK ABSORBERS
    Ohlins DR4

    TRANSMISSION
    6 speed Hewland CST Transverse Sequential Transaxle

    WHEELS
    BBS 18" 3 piece

    WEIGHT
    1245 kg / 2744 lbs

    LENGTH
    4790 mm / 188.5 inches

    WIDTH
    1996 mm / 78.5 inches

    HORSEPOWER
    Approximately 550

    RPM
    7000MAX.

    SPEED
    180 MPH

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