This is the #1 reason JTAG/RGH users search for this game. Retail requires hours of gameplay to unlock Mater, Chick Hicks, or The King. On a modded console, you have two options:
Option A: Simple Trainer
Option B: Manual Save Editing
Because the game is running from the hard drive, the Xbox 360's processor and GPU are reading data at higher speeds than the DVD drive allows. This results in smoother frame rates during graphically intense moments, such as the massive "Radiator Springs Speedway" events where multiple AI cars are on screen at once. Disney Pixar Cars Race O Rama -Jtag RGH-
The retail Race-O-Rama targets 30 FPS but often dips to low 20s during split-screen. A simple hex edit to the default.xex file (changing a specific memory flag from 0x1E to 0x00) unlocks the framerate. On an RGH Xbox 360 with a minor overclock (via a modded SMC), the game runs at a nearly stable 60 FPS. The difference is transformative. This is the #1 reason JTAG/RGH users search for this game