Entertainment System
Windows is well-equipped to operate a multi-media entertainment system. With larger SUVs often having movie-theater features -- especially for kids and back-seat passengers -- Windows would make a good interface to launch movies and music over a custom media system.Mechanical Systems
Modern cars have lots of computers. What they don't have is graphical user interface or GUI. In fact, most don't have an onboard interface; you must hookup a diagnostic computer to extract information or make programming adjustments. Windows, however, could be integrated to provide a user interface to the car driver or car occupants. There's little benefit in having Windows replace functions onboard computers already do, but it could be used to operate auxiliary functions of a customized car. The computer itself, along with all its components, would be placed in a custom enclosure where they would need to be cooled. Or, a notebook or laptop model could be used.
Virgin cars employ computers.The Microsoft Windows operating method has lots of built-in functions, including the intelligence to get digital dossier from exterior components or peripherals, fashion the ammo and letter hash to exterior components. These abilities make Microsoft operating systems viable tools for robotics, experimental cars and anything else that requires a complex -- or simple -- and programmable control system.
Housing and Integration
Windows could also be used to activate mechanical systems, such as air shocks. Many experimenters in the robotic world use PCs to operate their robots in a similar fashion -- often using the computer to control servo-motors and solenoids. A solenoid is a switch that translates an electric or potentially digital signal into a physical one. It could then, be used to operate systems such as air shocks.
Electronic Interface
A more sophisticated system could even control some of the electronic engine management functions. While most new cars already have systems like this, some custom cars and motorcycles use "performance chips" to override standard programs that guide functions such as electronic fuel injection or ignition advance. These systems make it easier to customize the settings. By having a graphical user interface in the vehicle, you could conceivably make it even easier -- choosing various performance settings from inside your car.