Knight Rider - Man Behind Driver's Seat Driving Kitt
I have the 'Best of' DVD set. Go to episode 1, slightly after 1 hour into it. Notice when KITT is 'driving itself' there is a guy wearing a tan bodysuit (matches the interior color) sitting behind the driver's seat, looking through a 'one-way' piece of glass in the headrest, and reaching his arms forward to steer. I'm assuming he has pedals in the back or something else to control acceleration and braking.
Just the pilot episode