In the context of NFS: Undercover, RG (Repetition Group) refers to a modified handling model introduced in certain repacks (e.g., RG Catalyst, RG Mechanics repacks) or community patches. These changes aim to fix the original game’s notoriously floaty, delayed, and overly drift-dependent handling.

Key goals of RG mechanics:

RG Mechanics is a fictional high-performance tuning and repair shop featured in Need for Speed: Undercover. It specializes in street racing upgrades, engine swaps, and race-prep services for players seeking to push cars toward competitive performance in the game.

Cars are divided into 4 tiers:

The RG repack sometimes includes a "money cheat" or "unlock all cars" save file, but purists avoid this because the progression is one of the few satisfying loops.

Need for Speed Undercover attempted to introduce tiered car progression similar to an RPG. Here’s how it works in the RG version:

No. Unlike Carbon’s territory control or Heat’s rep, RG in Undercover is a pure positive progression meter. You can’t lose it by getting busted, losing races, or damaging your car. This makes grinding low-risk—just time-consuming.