The specific ".part4" file likely refers to a split-archive of this 88MB update. Key improvements in this patch included: BeamNG.drive v0.26.1 Release Notes

The version mentioned, v0.26.1, is the polished version of the major Autumn 2022 release.

BeamNG.drive version was a minor hotfix released on September 22, 2022 , primarily to address bugs introduced in the major "Covet the Moment" (v0.26) update. This hotfix was essential for stabilizing the remastered Ibishu Covet and refining new gameplay systems like the Understeer Assistant . Core Feature Highlights of the 0.26 Generation

: A long-requested graphics feature that added a realistic sense of speed.

: A new system enabled parked cars in various levels (Italy, Utah, and West Coast USA) and added simplified traffic cars to improve CPU performance.

: The iconic hatchback was completely rebuilt with high-fidelity textures, improved body proportions, and approximately 40 new configurations . It introduced a mid-engine, rear-wheel-drive MR Turbo variant inspired by Group B rally cars.

: Introduced a system to simulate pumps and cylinders, initially applied to the Semi truck's dump bed and rollback upfits.