WHILE BACKING UP IN REVERSE, THE BRAKE DID NOT WORK. INSTEAD THE CAR ACCELERATED AND THE ENGINE REVED UP TO WHAT SEEM TO BE A VERY HIGH SPEED. THE CAR STOPPED WHEN IT SMASHED INTO OUR OTHER CAR, WHICH WAS ABOUT 4 FEET BEHIND IT. IT WAS ABOUT 5 PM ON A DRY ROAD. MY HUSBAND WAS WEARING WORK BOOTS AT THE TIME. THERE WAS ONLY A FEW SCRATCHES ON THE REAR BUMPER. THE HOOD OF THE OTHER CAR WAS PUSHED IN. OUR MECHANIC COULD NOT FIND COMPUTER CODES OR ANY OTHER PROBLEMS. THE HYUNDAI DEALER ALSO SAID THERE WERE NO ISSUES HE KNEW OF. OTHER ACCELERATION PROBLEMS WITH ELANTRAS WE READ ABOUT MAKE US THINK THE BRAKE AND ACCELERATOR DESIGN ON THESE CARS ARE TOO CLOSE TOGETHER. THEY SEEM TO BE ONLY ABOUT 3- 4" APART, WHERE OTHER MAKES ARE AT LEAST 6" APART. WE BELIEVE HIS BOOT MAY HAVE GOTTEN STUCK ON THE GAS WHEN SWITCHING TO THE BRAKE. THIS ALSO HAPPENED LAST WINTER WHEN OUR 2000 HYUNDAI ELANTRA WAS BACKING UP AND WOULD NOT STOP. IT WAS STOPPED BY A SNOWBANK. MY HUSBAND WAS ALSO WEARING SNOW BOOTS AT THE TIME. *TR