'Ultimate wheel customisation'. That's what SCS is promising Euro- and American Truck Simulator players will accompany Steam Workshop support in the next patch.
Recently, the tyres and discs of your big rigs were split into separate components. SCS is extending the system to include hubs, hubcaps and nuts. That'll arrive for both games simultaneously, although the patch isn't dated yet.
After that, the options will be expanded still further with "a small but cool DLC", packing far-out nut designs and paintable components. Quite a nice complement for Euro Truck Simulator's multiplayer mod, I'll wager.
On a Venn diagram, the modding and trucking communities are pretty much one circle. What Truck Simulator player doesn't want to customise their rig or convoy with thousands of other drivers online? Yes, modding is alive and well in SCS' sims, but the devs are set on making things easier still by implementing Steam Workshop support.
The update will come as part of patch 1.23 for Euro Truck Simulator 2 and patch 1.2 for American Truck Simulator—they haven't been dated beyond "a couple of weeks" away yet, and they'll go through public beta tests before going live for good.
To foster the creative spirit, SCS is also putting together a Wiki full of guides and info to get your started in the modding business. That's in addition to a specialised SCS Workshop Uploader tool that'll help you get them online for the world to see.