The Dutch Nürburgring stalkers at AutoGespot caught what they say is a higher-spec version of the Jaguar XKR. Using tech snared from Jag's GT3 racing program, the potential XKR-R (hmm) could get within range of 500 horsepower. That'll give Jag a prestige player to face down the Porsche 911 Turbos and Aston Martin V8 Vantages of the world. Could Jag's mega Fordbux finally be paying performance dividends? Will the cat become more than a footnote among the major players? Watch this space. [Auto Gespot]