The headline feature of the 1.37 update was the complete transition to the . Before this update, engine sounds and ambient noises were often criticized for being "flat." With the 1.37 exclusive update, SCS Software introduced:

Version 1.37 introduced a "walk-around" feature in the vehicle configuration and paint shop menus. Instead of a static camera, players could finally move their "camera person" around the truck to inspect every detail of their custom paint jobs and chrome accessories. This gave players a much better sense of the scale of their vehicles. Map Updates: Rebuilding French Cities

Some of the most famous legacy mods (including specific truck models and map expansions) were built specifically for the 1.37 architecture.