[wilko1995]

put these under "public OnPlayerCommandText(playerid, cmdtext[])"

pawn Code:

dcmd(impound, 7, cmdtext);
    dcmd(unimpound, 9, cmdtext);

cmds (put anywhere but not in a callback!):

pawn Code:

dcmd_impound(playerid, params[])
{
    new  engine,lights,alarm,doors,bonnet,boot,objective;
    new vid, id, idn[MAX_PLAYER_NAME], n[MAX_PLAYER_NAME], str[288];
    id = (strval(params));
    GetPlayerName(playerid, n, sizeof(n));
    if(!strlen(params)) return SendClientMessage(playerid, 0xFF0000, "USAGE: /impound <playerid>");
    if(!IsPlayerInAnyVehicle(id)) return SendClientMessage(playerid, 0xFF0000, "Player Is not in vehicle");
    vid = GetPlayerVehicleID(id);
    GetPlayerName(id, idn, sizeof(idn));
    GetVehicleParamsEx(vid,engine,lights,alarm,doors,bonnet,boot,objective);
    SetVehicleParamsEx(vid,0,lights,alarm,doors,bonnet,boot,objective);
    format(str,sizeof(str),"%s has impounded %s's vehicle", n, idn);
    SendClientMessageToAll(0x0000FFAA, str);
    return 1;
}
dcmd_unimpound(playerid, params[])
{
    new  engine,lights,alarm,doors,bonnet,boot,objective;
    new vid, id, idn[MAX_PLAYER_NAME], n[MAX_PLAYER_NAME], str[245];
    id = (strval(params));
    GetPlayerName(playerid, n, sizeof(n));
    if(!strlen(params)) return SendClientMessage(playerid, 0xFF0000, "USAGE: /unimpound <playerid>");
    if(!IsPlayerInAnyVehicle(id)) return SendClientMessage(playerid, 0xFF0000, "Player Is not in vehicle");
    vid = GetPlayerVehicleID(id);
    GetPlayerName(id, idn, sizeof(idn));
    GetVehicleParamsEx(vid,engine,lights,alarm,doors,bonnet,boot,objective);
    SetVehicleParamsEx(vid,1,lights,alarm,doors,bonnet,boot,objective);
    format(str, sizeof(str), "%s has unimpounded %s's vehicle", n, idn);
    SendClientMessageToAll(0x0000FFAA, str);
    return 1;
}

If you need anything modified just ask