2001 Lexus LS430 Fuel System problems

The driver/owner of the lexus ls 430 was pulling in to a parking spot behind another car at a private club. It was straight in parking behind a gmc yukon. In pulling into the spot, the right rear tire went over a curb, and suddenly the car accelerated like a rocket. The driver stepped on the brake and nothing would stop it. Since the car was only about one foot away from the parked yukon, the lexus was stopped by the impact. The car was put in park and the engine turned off. Air bag did not deploy. Damage...

I owned a 2001 lexus ls430 from 2001 to 2004. During that time, the car would accelerate by itself when going slowly - down my driveway, into my garage, out of my garage, pulling up the driveway. It only happened when going very slowly - say five miles an hour or less - but it consistently happened. I took it to the local dealer a couple of times and they said, "we did not notice anything." I wasn't really concerned since I was usually only going around five miles an hour, and I would depress the brake...