A circuit will follow the sun if you put wheels on it with a motor to drive each wheel and four solar panels mounted above the circuit in a diamond arrangement. One solar panel per motor, one motor per wheel. Wire the right front solar panel to the left front wheel motor, and the left front solar panel to the right front wheel motor--making sure to observe polarity such that the rotation of the wheel will steer the circuit towards the sun. Do the same with the back wheels.
As it is unlikely, with this arrangement, your circuit will be able to keep up with the sun, this will only work when the sun is in the sky. If you want your circuit to follow the sun 24/7, you will need to replace the motors with jet engines (or the equivalent).
Oh, wait, is it too late for April Fools?!?
