KNIGHT RIDER LIGHT VERSION 2
I rebuilt my Knight Rider light using an Arduino circuit. It works nice because I can program each LED individually for when it turns on/off and how bright it is. If you watch the scan pattern, you will see a fadded light bar followed by a bright one to give it a dual effect. The same happens when It fades away. I also soldered together a transistor amplifier circuit to give each LED maximum current of 20mA. I used 8mm wide angle 45,000mcd LED's so they are extremely bright.

Here's the Arduino Duemilanove Controller

This is the Transistor Circuit with 11 of them.

And finally everything soldered together. I made a nice protective case for it to shield water from getting inside.