If you are sourcing the (Nintendo Submission Package) for use on Atmosphere or Ryujinx/Yuzu, do not settle for the base 1.0.0 release. The complete collection includes:

The most "interesting" aspect of the Switch version isn't just that it exists, but how much it improved over time. Early builds of the game struggled with texture pop-in and dynamic resolution that left the windshield looking like a muddy blur. The subsequent updates (often tracked by version numbers in the scene) didn't just add content; they overhauled the engine. The developers managed to stabilize the framerate in a way that made the game playable in handheld mode—a crucial feat for a console designed for portability. Turning a 4K visual benchmark into a portable experience without breaking the physics engine is a technical tightrope walk that WRC 9 eventually nailed.

Enabled real-time online racing against other players.

on Nintendo Switch offers a deep off-road simulation. Since its launch, the game has received several updates and content packs to refine performance and expand your garage. Latest Updates & Patch Notes