Last week I bought a Hot Wheels K.I.T.T. Super Pursuit Mode. Its price is four times that of a regular mainline Hot Wheels. The quality is a little disappointing given its high price; the gray paint detail is not sharp.
According to Wikipedia,
KITT’s Super-Pursuit mode was added at the start of the fourth season. It was the result of a redesign of the car to integrate new concepts consisting of improved rocket boosters for enhanced acceleration, retractable spoilers for aerodynamic stability, and movable air inlets for increased cooling. Super-Pursuit Mode provided a 40% boost in speed beyond the car’s original top speed of 300 MPH.