My second railcar for the Train is gone!

The second railcar can only be added by using 1 Train Ticket and it’s one-time use only, not a permanent upgrade.

Here’s how you can add a second railcar:

After you use the ticket to call a Second Railcar, you also have to choose what you want it to come with besides its 7 default crates: 2 more crates, or a cooler. With a cooler you can send 150 recipes.