You can place as many cars to the back of the train as you have room for. The only layout achieveable is a straight line. The good news is you only need the main train to be touching a road.Is there a guide to show the best layout of the train with all Cars attached?

Does the Train set stop at/or is it completed using 13 x 3 spaces?

Will adding on extra cars on a single train provide any bonus or is it just the fully laid out 13 x 3 that matters?

Am asking only to work out whether to use just 13 x 3 or make more space to add on any additional cars should we be fortunate to gain multiple cars?

Here's two possible layouts I came up with for the train (pretend the ship is a train and the sunken treasure/sleighs are the cars)