??????(GM)? ‘?? ?????’, ‘??? ????’, ‘GMC ????’ ? ?????????(SUV) 3?? 2014?? ?? 5?1640?? ????? ??? ??? ????? 3?(?? ??) ?? ???????(NHTSA)? ???.
??????? 9? ?? ???? ?? ??? ?? ???? ??????? 5? ???. ??? ??? 8??? ? ??? ???? ‘??? ?? ??????’??. ??????? ‘??? ??, ??’ ? ??? ??? ??? ???? ??? ??? ???? ??? ?(茶) ???? ??? ???? ??? ????.