http://forum.sa-mp.com/showthread.php?t=422773
CreateVehicle(id, x,y,z,a,col1,col2, repsawn time);
so
CreateVehicle(411, 0, 0, 10, 90, 149, 0, 120);
the respawn is in seconds...... so just multiply 60*how minutes u would like
60*2 = 120 = how much minutes i would like