After some digging, I found the legendary (v1.0.1.0) patch and got it working in 2021. Here’s what worked for me:
: Replaces the "floaty" vanilla physics with handling more similar to NFS: Most Wanted .
To get the best experience, community guides from platforms like PCGamingWiki suggest using the 1.0.0.1 version as a base. NFS Undercover is good now?! Reformed 7.7 Mod
were intended to fix bugs, they introduced new trade-offs that led many purists to stick with the original executable: Graphical Integrity
If you encountered nfs undercover 1001.exe 2021 on your system:
This is the "gold standard" for Undercover. It adds widescreen support, fixes the HUD, allows you to skip intro movies, and adds much-needed support for modern controllers (Xbox and PlayStation).