The idea of steering cars by joystick has been around quite a while, inspired by aircraft controls. At the start of the jet age, everyone secretly wanted to be a superfast sexy jet pilot, and car ...

The joystick x-axis is attached to Arduino pin A0 and the y-axis to Arduino A1, and these are our INPUT. The x- and y-axes are then set as variables for movement.

Saab's joystick, however, turned 180 degrees lock to lock. This meant that even small adjustments to the joystick led to big changes in where the car was pointed. Not optimal.