Engines with 1 hp of power and no visual effects, to keep it simple (might still need special handling though) - or even just extra wagons.
#1 Updated by Eddi over 8 years ago
i'd rather not mess with such hacky stuff like "cab car as engines", especially graphically switching around the train like other sets do is near-impossible with all the different length vehicles we have. it will always be incomplete. we should rather have an actual push-pull feature implemented in the game, where the newgrf just sets a property/callback to enable it.
another related game limitation is that we can't allow turning around vehicles with ctrl+click in the depot, since practically all of our vehicles are articulated. this could be done, but needs both a sane spec and a sane implementation first. (one immediate use-case here would be the ICE2)