Found A Very Duplicate Question About Double Deck Container Trailers

Cumberland, Horseshoe, their container trailers are all of one kind, I see at least three double decker trailers in the US, why is there only one reused in the game? It's annoying to watch!

 

I saw another cargo on a train in the US, why isn't there a truck trailer?

 

Becuase no one, (DTG or SHG) wants to develop new Well Cars or proper Spine Cars for modern US intermodal service.....