KARR

KARR was originally designed by Wilton Knight and built by his company, Knight Industries, as the first iteration of an artificially intelligent vehicle. Upon activation, a critical programming error rendered its CPU unstable and potentially dangerous, prioritising its own survival above all else. This fundamental difference from KITT, which was programmed to protect human life, led to KARR being deemed a failure and placed in storage.

Unlike KITT's benevolent and loyal personality, KARR is ruthless, unpredictable, and self-serving, often exhibiting a naive, child-like perception of the world that can be exploited by others. It considers itself superior to KITT, often referring to it as an "inferior production model," and has demonstrated a complete lack of respect or loyalty, even ejecting its own driver to ensure its escape. KARR's voice was initially provided by Peter Cullen in its first appearance, and later by Paul Frees for its return in the original series.

KARR made two notable appearances in the original Knight Rider series: "Trust Doesn't Rust" and "K.I.T.T. vs. K.A.R.R.". Initially, it appeared physically identical to KITT, save for a yellow LED voice modulator, but its scanner bar later adopted a yellow hue to distinguish it. In the 2008 Knight Rider revival series, KARR returned with a more advanced design, including an amber scanner and the ability to transform into a bipedal robotic exoskeleton. KARR's role as KITT's malevolent counterpart serves to highlight the importance of KITT's ethical programming and the dangers of unchecked artificial intelligence.