WE HAVE BEEN HAVING TROUBLE WITH MY 2008 TOYOTA TACOMA TRUCK WITH THE ENGINE REVVING WHEN WE FIRST START IT UP. WE TOOK IT TO THE DEALER. THEY SAID THAT THIS IS "NORMAL" LAST WEEK WE TOOK IT IN DUE TO A SAFETY RECALL NOTICE FOR SUDDEN ACCELERATION PROBLEMS THAT TOYOTA CLAIMS IS DUE TO FLOOR MATS. DEALER CUT DOWN THE ACCELERATOR PEDAL, REPROGRAMMED THE COMPUTER CONTROL SYSTEM, ROTATED THE TIRES. UPON PULLING OUT OF THE DEALERSHIP THE STEERING WHEEL VIBRATED (SIDE TO SIDE) AND CAR BUCKED (FRONT TO BACK) THERE WERE LOUD GRINDING AND BANGING NOISES. CAR PULLED STRONGLY TO THE LEFT. I TOOK MY FOOT OFF OF THE ACCELERATOR . INSTEAD OF SLOWING, THE ENGINE SUDDENLY REVVED UP. DUE TO ONCOMING TRAFFIC ON BOTH SIDES OF US, I FOCUSED ON STEERING US OUT OF TROUBLE BY KEEPING US IN OUR LANE. I DID NOT APPLY BRAKE. I HAD THOUGHT THAT WITHOUT GAS, THE CAR WOULD GRADUALLY SLOW DOWN ON ITS OWN. INSTEAD OF SLOWING THE ENGINE REVVED UP! TRUCK SUDDENLY LURCHED 90 DEGREES TO LEFT, JERKED STEERING WHEEL OUR OF MY HANDS VEHICLE LURCHED INTO THE ONCOMING TRAFFIC LANE, WHOLE FRONT PASSENGER SIDE TIRE ASSEMBLY CAME OFF AND HEADED ONE WAY AND THE TRUCK WENT THE OTHER. WE WERE THROWN FORWARD, DOWN AND TO THE RIGHT. THE VEHICLE KEPT MOVING UNTIL WE CRASHED INTO CONCRETE ENTRANCE/EXIT OF DEALERSHIP. I PUT ON EMERGENCY BRAKE. DEALER SAYS "SIMPLE HUMAN ERROR MECHANIC FORGOT TO TIGHTEN BOLTS ON TIRE" I THINK THIS GOES WAY BEYOND A TIRE PROBLEM. THEY MESSED WITH COMPUTER CON