NASCAR Heat 4, the official video game of NASCAR, looks, sounds, and plays better than ever! New Features - Track Map, Unlockable Paint Schemes, Dynamic User Interface, More Driving Control Options, Deeper Career Mode, Sonoma Raceway & Charlotte Roval Track Updates New Graphics & Sound - Complete overhaul of all graphics and audio packages Draft Like a Pro - Team up and draft with other drivers with the drafting features Smarter, Competitive AI - The AI now runs multiple racing lines and utilizes new controls to adjust its skill range, stability and spread