It drives....
....and tries not to bounce against a wall or something else.
He is a 2WD robot, equipped with an Arduino Uno, Adafruit Motorshield and a HC-SR04 Super-Sonic Sensor that recognizes distance to objects.
I call him Mark1.
I have ordered another 2WD chassis to build more or less an image of him and let them react to each other.
Progress will be displayed here.