Using Cheat Engine on a licensed copy of Need for Speed: Most Wanted 2012 is a violation of the EA User Agreement. You will not go to jail, but EA can permanently revoke your license to the game. Furthermore, distributing custom CE tables for profit is illegal; for free, it falls into a grey area of modding.
: Advanced users employ Auto-Assemble scripts to alter car physics. This includes "Super Speed" for instant acceleration, "Super Brake" for immediate stops, and even "Jump" functions by modifying Z-coordinate values. need for speed most wanted 2012 cheat engine