CAR HAVING MAJOR MISS FIREING AND VERY BAD JERKING BACK AND FOURTH AT HIGH RI RMP.7000 AND DOES IT ALOT WHICH IA CAUSING ME TO HAVE MORE PAIN AND INJURY TO.MY.BACK. AM DISABLE VETERAN. IM IM ALOT OF PAIN AND CAUSINF MY RECENT BACK SURGERY TO HAVE MORE ISSUES DUE TO A @#$%ED UP CAR POOR DESIGN