Jaguar has been busy readying their answer to
Mercedes-Benz AMG's Black Series - the 550hp XKR-S Track Version. The powerful model was spotted by our intrepid spy photographers on the
Nurburgring during the industry test day and it not only looked great but ran "some very fast laps." 550hp, aerodynamic changes and a lighter curb weight will do that to a two-door Jaguar.