No, the Knightrider was a human.
The car, KITT, from the original series, however, technically was both. That's because Trans Ams are Firebirds. Not all Firebirds are Trans Ams though. KITT was a third generation F-body (the car platform shared with the Camaro in the OP) which ran model years 1982 through 1992. The best example of which, in my opinion, is the '89 Turbo Trans Am or Trans Am GTA. To me, that style in a well maintained car still holds up well today.
My Trans Ams are a 1979 Black Special Edition, a slightly updated version of the car that appeared in the classic Smokey and the Bandit (RIP Jerry Reed whom passed away in
2008), and a white 2000 WS6. Both have been posted in various car threads here over the years.
"I would rather claim to be an uneducated man than be mal-educated and claim to be otherwise." - Wookie 03:16