2007 Jaguar Xkr

I PURCHASED A BRAND NEW JAGUAR XKR CONVERTIBLE FROM MY LOCAL JAGUAR DEALER ON 1ST AUGUST 2007. SHORTLY AFTERWARDS, WHILST DRIVING ON THE MOTORWAY I ACCELERATED TO OVERTAKE A CAR IN THE MIDDLE LANE. WHEN I RELEASED MY FOOT FROM THE ACCELERATOR, THE CAR CONTINUED TO GO FAST. IT WOULD NOT SLOW DOWN. I APPLIED THE BRAKES AND THE CAR MOMENTARILY APPEARED TO SLOW DOWN BUT THE SHEER POWER OF THE ENGINE CONTINUED TO MAKE THE CAR GO FASTER. THE ONLY WAY I COULD STOP THE CAR, WAS TO PUT THE GEARSTICK INTO PARK AND PRESS THE START/STOP BUTTON. I TOOK THE CAR BACK TO THE DEALERS AND THEY SAID THERE WAS NOTHING WRONG WITH IT BUT THEY RESET THE COMPUTER. THIS SAME PROBLEM HAS HAPPENED ON A FEW OCCASIONS. THE LAST TIME WAS ON 16TH JANUARY 2008 WHICH WAS THE LAST TIME I DROVE THE CAR. THE CAR WENT BACK TO THE DEALERS AND THAT IS WHERE IT REMAINS SOME 10 MONTHS LATER .I HAVE 3 WITNESSES INCLUDING MY WIFE AND A TRAFFIC COP WHO WERE BOTH IN THE CAR ON SEPARATE OCCASIONS. I HAD A MEETING WITH JAGUAR CARS UK AND THE DEALERS BACK IN AUGUST, BUT THEY FAILED TO PROVE ANYTHING. A COURT CASE IS ARRANGED FOR 7TH AND 8TH JANUARY 2009. *TR