[-John-]

Try it with this(taken from GF and edited for your needs):

Under OnPlayerCommandText you need:

pawn Код:

new string[128];
new cmd[128];
new tmp[128];
cmd = strtok(cmdtext, idx);

pawn Код:

if(strcmp(cmd, "/veh", true) == 0)
    {
      if(IsPlayerConnected(playerid))
      {
        if (!IsPlayerAdmin(playerid))
            {
              SendClientMessage(playerid, 0x7D8778FF, "You arent logged in as an Admin!");
              return 1;
            }
            tmp = strtok(cmdtext, idx);
            if(!strlen(tmp))
            {
                SendClientMessage(playerid, 0x7D8778FF, "USAGE: /veh [carid] [color1] [color2]");
                return 1;
            }
            new car;
            car = strval(tmp);
            if(car < 400 || car > 611) { SendClientMessage(playerid, 0x7D8778FF, " Vehicle Number can't be below 400 or above 611 !"); return 1; }
            tmp = strtok(cmdtext, idx);
            if(!strlen(tmp))
            {
                SendClientMessage(playerid, 0x7D8778FF, "USAGE: /veh [carid] [color1] [color2]");
                return 1;
            }
            new color1;
            color1 = strval(tmp);
            if(color1 < 0 || color1 > 126) { SendClientMessage(playerid, 0x7D8778FF, " Color Number can't be below 0 or above 126 !"); return 1; }
            tmp = strtok(cmdtext, idx);
            if(!strlen(tmp))
            {
                SendClientMessage(playerid, 0x7D8778FF, "USAGE: /veh [carid] [color1] [color2]");
                return 1;
            }
            new color2;
            color2 = strval(tmp);
            if(color2 < 0 || color2 > 126) { SendClientMessage(playerid, 0x7D8778FF, " Color Number can't be below 0 or above 126 !"); return 1; }
            new Float:X,Float:Y,Float:Z;
            GetPlayerPos(playerid, X,Y,Z);
            new carid = CreateVehicle(car, X,Y,Z, 0.0, color1, color2, 60000);
            format(string, sizeof(string), " Vehicle %d spawned.", carid);
            SendClientMessage(playerid, COLOR_GREY, string);
        }
        return 1;
    }

Sorry for the indetention