Should I call to a guy back who claimed on a voicemail that he bought my last vehicle for his kid?

I wouldn't, but that's just me. I'd be concerned that anything I say could be used as evidence the car was sold faulty or something weird like that. Whenever I sell an old car, I make sure to put it in writing that it is being sold as-is, no warranty or refund to be expected or offered. Once it's out of my hands, I want nothing more to do with it.

I wouldn't. It sounds pretty suspicious to me. I don't know why he would be needing that connection with you. If he wants to know more about the vehicle, he can always look online, contact a garage or ask for information from a dealership.

Unless you actually had any valuable info for him, or you'd be potentially maybe be open to this being his awkward attempt to ask you out I wouldn't call back.

That’s a ploy of some kind. There’s lots of care care info available on the web.

No. He should call a mechanic. Did he buy the car from you directly?

i learned from something similar that the car I sold is now living and well in Rome!

Is he hitting on you?

Most definitely NOT

I sure as hell wouldn't!

Nope. I wouldn’t either.