How To: Multi Car Trains on Curved Tracks

After a great deal of tinkering and some discussing with @Crash on how to go about this. I have managed to make a reliable setup wherein which a train with multiple cars can go around curved tracks while keeping the linkages between them visually solvent!

Seems the secret was clever positioning of the origin and setting the wheel width to the length of the whole car:

(train going at minimum possible turning radius, note the only issue being is the trains are slightly offset of tracks going around turns due to origin positioning)