The track wagon is an open wagon carrying an amibiguous load that looks a bit like train tracks or maybe steel bars packed in a triangle formation with dividers. It has a bigger inventory than the standard wagons and is recoverable (drops itself)

Mod name	advtrains_freight_train
Author	mbb
Inventory image
Screenshot
Track type	default
Crafting recipe	No
Wagon span	1.55 m
Max speed	10 m/s (36 km/h)
Cargo inventory size	48
Passenger seats	No
Driver stand	No
Animated doors	No
Animated wheels	No
Motive power	No
Drops	advtrains:wagon_track
Horn sound	No
Motor sounds	No
Liveries	No
Line number display	No
Particles	No