[DAKYSKYE]

Well, first you need good command processor, for example: YashasSamaga's SmartCMD (which is very powerful cmd processor), place it in pawno/includes directory and then include it

Код HTML:

#include <smartcmd>

Then it depends what you want. If you want to spawn for example NRG-500 when you type command
"abc", the code would look like this:

PHP код:

CMD:abc(cmdid, playerid, params[])
{
        new Float:x, Float:y, Float:z;
        GetPlayerPos(playerid, x, y, z);
        CreateVehicle(522, x+0.5, y, z, 0.0, 0, 3, -1);
    return CMD_SUCCESS;
} 


But if you want command which can spawn any vehicle (by writing vehicle id after command), you can search for it on this forum.