I'm reexperiencing this game from my childhood. Having a lot of fun!
I've now unlocked the Manley-Morel DMU (Diesel) and can't for the life of me figure out how to configure the train with two cars.
![Confused ?(](./images/smilies/confused.gif)
In the "New Rail Vehicles" dialog the train is pictured with two cars, 38 + 38 = 76 passengers. So when I buy it I get the first car, but buying a second one just creates a new train for 38 passengers. I've tried combining them into one train by dragging the second one on top of the first one, but it's not working.
I suspect this is just me missing something silly. I've tried searching for this, but haven't found anything.
I'm running with TTDPatch 2.0 rev 1 if that makes a difference.