I just set it up to test because there was a thread a while back where there was confusion about whether goods would transfer from train to truck and vice versa. So I scienced it. It took all my money and obviously wasn’t profitable because the industries were barely putting anything out in the beginning.
I have had another truck to train transfer that was profitable though, some trucks make a short hop to a nearby station carrying iron ore and then a train takes it to a steel works.