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)
This one would be useful if you have large buildings that fit perfectly at the end but not enough to fill the entire row and need something to fill in the gap.