Does the lower front section (goose neck) allow a larger bedroom, lower overall height etc?

The front section that goes over the back of the tow vehicle, is called the goose neck. It is also where the bedroom is situated inside. The goose neck on the Ultimas is lower than equivalent US models. This is because the tray heights of Japanese pickups are generally lower than US pick ups. This has allowed us to both lower the overall height of the 5th wheeler and still have more headroom. It also reduces the front surface area of our 5th wheeler which reduces wind resistance and drag.