AT APPX 115PM I HAD LUNCH AT THE MILLBURN DINER. I GOT INTO MY VEHICLE AT APPX 2PM IN THE PARKING LOT OF THE DINER AT 72 ESSEX STREET IN MILLBURN NJ. I PRESSED THE BUTTON TO START MY CAR. I LOOKED BACK AND SHIFTED FROM PARK TO REVERSE IN MOTION. I SLOWLY MOVED BACKWARDS IN THE VEHICLE AND I EXPERIENCED A SUDDEN INVOLUNTARY ACCELERATION BACKWARDS AND MY VEHICLE WAS JOLTED BY A TELEPHONE POLE. I BRAKED AND WENT TO PUT THE CAR INTO DRIVE TO SHIFT FORWARD AND THE CAR SUDDENLY ACCELERATED FORWARD INVOLUNTARILY WITH SPEED. I INSTINCTIVELY TRIED TO STOP THE CAR WITH THE BRAKES AND BY PRESSING THE PARK BUTTON TO STOP THE VEHICLE. THE VEHICLE RAN INTO A METAL RAILING GUARDING AN OUTDOOR DINING AREA. THERE US A 3RD PARTY WITNESS TO THIS SUDDEN ACCELERATION.