A WATSONVILLE GIRL WAS FLOWN TO A BAY AREA TRAUMA CENTER WITH NON-LIFE THREATENING INJURIES AFTER BEING HIT BY A CAR LAST NIGHT (TUES).    THE INCIDENT OCCURRED JUST AFTER 8 P-M ON THE 1-HUNDRED BLOCK OF BRENNAN STREET. OFFICIALS SAY THE 7-YEAR-OLD WAS STRUCK AFTER SHE RAN INTO THE ROAD WHILE PLAYING.    THE DRIVER COOPERATED WITH POLICE AND WAS FOUND UNLICENSED.     HE WAS TICKETED AND HIS CAR WAS IMPOUNDED.