THIS FLIGHT WAS THE STUDENT PILOT'S SECOND SOLO CROSS COUNTRY FLIGHT. GROUND WITNESSES REPORTED THAT THE AIRCRAFT HAD DIFFICULTY ENTERING THE PATTERN IN THE NORMAL MANNER AND SEEMED TO OVER SHOOT THE BASE TO FINAL TURN. THE WITNESSES REPORTED THAT THE AIRCRAFT WAS 'VERY HIGH ON FINAL, CARRYING POWER, AND DIVING TOWARD THE RUNWAY.' THE AIRCRAFT WAS OBSERVED TO TOUCH DOWN ABOUT THREE QUARTERS OF THE WAY DOWN THE RUNWAY, BOUNCE ONCE, THEN SKID OFF THE DEPARTURE END OF THE RUNWAY. THE AIRCRAFT TRAVELED THROUGH A WOODEN AIRPORT PERIMETER FENCE AND COLLIDED WITH A CAR ON A BORDERING STREET. THE STUDENT PILOT SAID THAT SHE LANDED LONG ON THE RUNWAY AND COULD NOT STOP PRIOR TO RUNNING OFF THE DEPARTURE END. THE PILOT REPORTED THAT SHE ATTEMPTED TO PERFORM A GO AROUND, BUT NEVER GOT AIRBORNE. THE STUDENT NOTED THAT HER HOME BASE AIRPORT HAS A 3,200 FOOT LONG RUNWAY WITH AN 800 FOOT DISPLACED THRESHOLD AND SHE IS USED TO LANDING LONG.