[Sledgehammer]

Even though this should be under scripting help, the code to do such thing should be:

pawn Код:

#include <a_samp>
#include <zcmd>

new PlayerVehicle[MAX_PLAYERS];

CMD:v(playerid, params[])
{
     new Float:x, Float:y, Float:z;
     GetPlayerPos(playerid, x, y, z);
     PlayerVehicle[playerid] = CreateVehicle(522, x, y, z, 0, 0, 0, -1);
     return 1;
}

public OnPlayerConnect(playerid)
{
     PlayerVehicle[playerid] = -1;
     return 1;  
}

public OnPlayerExitVehicle(playerid)
{
     DestroyVehicle(PlayerVehicle[playerid]);
     return 1;
}

Code not tested, however adjust it to your needs.