The new engine enables enhanced interaction between the cars and the game world, with rolls, the ability to become airborne and tires that spin. The cars also feature a virtual 3D interior that enables racers to glance around the course, and has arm and steering wheel movement. The user interface includes pop-up help for car setup and configuration options. Other driver aids include a novice mode with steering and stability control as well as traction control to limit wheel spin. The new hardware-required 32-bit graphics engine allows for real-time shadows, a higher frame rate and smooth slow motion.