[Darkwood17]

Код:

COMMAND:temp(playerid,params[])
{
	new string[420];
	for(new v=0; v < PlayerInfo[playerid][amountofcars]; v++)
	{
		format(string, sizeof(string), "%i(%i)", cInfo[v][carmodelid], cInfo[v][db_id]);
	}
	ShowPlayerDialog(playerid, DIALOG_CARSPAWN, DIALOG_STYLE_LIST, "Car spawning", string, "Spawn", "Close");
	return 1;
}

ShowPlayerDialog() should be out of the loop.