I admit that I was somewhat surprised to discover that I was not, in fact, a prototype vehicle, but...
5 seconds sound clip from Knight Rider - Trust doesn't rust (S1E9).
You can hear this line at 00:18:25.469 in the Blu-ray version of the episode.
Quote context
[...]
- Michael, I hope the security guard has some answers for us.
- Those sensor echoes last night were very puzzling.
- Michael?
- Michael, really. By now you should know me better than that.
- There. You see? You're upset. It's gotta be a little blow to your ego, right?
- Not at all. On the contrary. It's a compliment.
- Instead of being a problem-ridden prototype, I'm the new, improved model.
- Negative, Tony. I do not wish to go back to the slammer.
[...]