In order for you to play Disney Pixar Cars on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows Me / 2000 / XP / Vista
Processor (CPU):
Pentium III 800MHz or higher
Memory (RAM):
256 MB RAM
Graphics Card:
Any 3D 32MB DirectX 9 compatible graphics card (nVidia GeForce 2 or ATI Radeon 7500 or higher)
Storage:
500 MB available space
Sound Card:
Any 100% DirectX 9 compatible soundcard