Car Accelerates On Its Own problems of the 2004 Jaguar X-type

This vehicle has been driven only about 26,000 miles. I bought it brand new from manhattan Jaguar dealership in bethesda MD. And is still under an extended warranty. Over the last 7 years that I have owned this car I have had 3 incidents of sudden acceleration. The first happened about two years ago as I came to a red traffic light. I applied the brake and the vehicle slowed down. But then the engine suddenly made a roaring sound and the vehicle began to accelerate. As I was pushing the brake I also pushed the gear to the "p" and the vehicle stopped about 6 feet beyond the stopping line. The second time I was actually stopped to make a turn and again suddenly the engine made a roaring sound and the vehicle began a sudden acceleration. . My wife was sitting next to me and again I applied the brake and immediately push the gear to "p". Both of incidents were reported to the dealer to no avail. The last incident happened on January 13, 2011 as I was stopped 5-6 feet from the car ahead of me in a busy traffic. Again all the sudden it was a roaring sound and the vehicle began the sudden acceleration despite my pushing on the brake. The distance between me and the front car was too short; so before I could stopped the car, I hit the rear end of the vehicle stopped ahead of me. My insurance paid $725 to fix the damages to the rear bumper of that car. I took the car to the dealer again and they kept it for three days claiming that since they could not replicate the acceleration they could not do anything for me. I also drove the car with one of the dealers staff. The purpose I guess was for me to replicate the acceleration as if the previous cases were done on purpose. This car also had a problem with the side mirrors. They would move as I was driving. After some 10 times complaint, finally they said a gadget under the driver's seat was the culprit and finally took care of.

Husband (driver) and wife (passenger) experienced a "sudden acceleration incident" in the parking lot of a resort hotel. Husband applied the brake and the car "open throttled. " husband continued to apply brakes, but car continued to inch forward due to the revving engine.