Kind of end. No finale. It just wasn't renewed.
Oh, God, "Voo Doo Knight." That was a "Turnabout Intruder" sort of finale: an hour of LOLWHUT full of sound and (not much) fury, signifying nothing. It's been ages since I subjected myself to it, but it was really weak tea: Patricia McPherson wasn't even in the episode, so Devon gets to do all the technobabbly stuff. The budget must have been almost gone at that point, because there's virtually no car stunts to speak of, not even with the models that they increasingly used starting in Season 2 so as to reduce the number of Trans Ams they were wrecking each week. And then there's Henry Gibson, slumming it.
However, my memories of the last season are sketchy. I remember 'super pursuit mode' which was unintentionally hilarious, and I remember a hip young African-American kid who had a Knight Bike (but can't remember if it had any special powers).
Reginald Cornelius III, a.k.a. RC3, who was the semi's driver during the last season and occasionally backed up Michael. He had this crappy motorcycle he kept working on. There was nothing high-tech about it, and I remember they made a running gag out of him trying to get it to work and Devon rolling his eyes a lot.
RC was played by Peter Parros, best known for his roles in various soap operas, though he was also one of the Klingons on the ship where Riker is the Federation exchange officer.
I could never understand why 'turbo boost' always resulted in him jumping over obstacles. Even as a kid, I knew that a turbo boost would just make you faster. Why did it allow KITT to jump?
Presumably the turbo boost rockets could be angled depending on what Michael was trying to make KITT do, or else there were different rockets — some rear-facing to add a short burst of speed, some angled up to make the car jump short distances.
Personally I quite liked the reboot in 2008. Especially in the second half of the series once they'd got rid of the political side of the show and made it more like the original "one man and his car" premise. I was sad to see it axed as I thought there was a lot of potential there. Definitely more so than Team Knight Rider had.
I enjoyed it, especially after the midseason soft re-reboot. But I was never completely sold on it... Justin Bruening never really did it for me, Val Kilmer's delivery was a little too HAL-9000-ish and could have used a bit more attitude, and they never totally clicked the way Hasselhoff and William Daniels did.*
*Which is that much more amazing because Daniels recorded his dialogue during post-production; Hasselhoff was interacting with the script girl.