Join the official fan-run “Truck Simulator Ultimate Modding Community.” In their #dlc-links channel, they pin verified URLs for extra quality map expansions. Search the channel for “4K” or “Premium.”
There is one safe way to get custom skins and visual DLC equivalents: that do not alter game currency.
: Once the download finishes, you must Enable the mod for it to appear in your garage. Most "extra quality" vehicles cost around 200k in-game cash to unlock once imported. Top "Extra Quality" DLC & Skins