Board Thread:Questions and Answers/@comment-29498028-20160806232010/@comment-26828130-20160807015813

Elvara78 wrote: You can't they exist trains with 1, 2, 3, 4 engines but they are made that one it's still one locomotive. You forgot 5 (penta) :P

Like Elvara said, you can't connect loco's, but you can buy single engines (as you know them), doubles, triples, quad's, and penta's Although they consist of multiple engines, you buy them as one

If you check the shop and look at the loco's that unlock at higher levels, you'll see what we mean ;)