1:24 Knight Rider K.A.R.R with Working LightsK. A. R. R is the prototype version of K. I. T. T, and built by his company Knight Industries. Upon completion of the vehicle, K. A. R. R's CPU was installed and activated. However, a programming error made the computer unstable and potentially dangerous. The project was put on hold and K. A. R. R was placed in storage until a solution could be found. Unlike K. I. T. T, whose primary directive is to protect human life, KARR was programmed for self