Geoff Crammond's Grand Prix 4 features a new graphics engine with anti-aliasing, environment mapping, and cars with 3000+ polygons each. Over 30,000 photos were used during production to help ensure realism, and the pit crews have been created with the aid of motion capture photography. The computer car AI has been improved, with driver error and stress taken into account. Global positioning technology helped make the game courses copy the real-life tracks, and the physics engine allows drivers to feel the traction as they round sharp corners.