It's gotta be 'Team Knight Rider'. It's like a spin-off of the original but with multiple talking vehicles and hell yeah, one of them was red. The show was definitely more on the adventure side and not super heavy on the whole crime fighting bit.

This is kind of a long shot, but you might be thinking of 'Wheelie and the Chopper Bunch' which was way back, like 70s back. But then again, it's an animated series and has a bunch of talking vehicles, not just one. Who knows what reruns you caught as a kid in the 90s.

talking car?? was it brum? lol jk that was a kids show and it was from the UK i think. but maybe u watched some weird international show idk.

What you are referring to might be 'VR Troopers'. While it's not centered around the talking car, there was a sentient car named Jeb. Was more of a kids show with that mix of Power Rangers vibe. The car was definitely involved in all the weird adventures. Look it up and see if that hits nostalgia for ya!

Could it be 'Viper'? I remember the show had this dope red Viper car that fought crime but also had plenty of adventure stuff in it. I think it was the mid-90s?

haha this reminds me of 'Turbo Teen' where the guy transforms into a red sports car, but i think its from the 80s and its animated so might not be what you're looking for 😅

Ohh I think I totally got what you're talking about! Is it 'My Mother the Car'? It's this really old show from the '60s, yea not 90s but maybe it was reruned when u were a kid? The car was called Portia and it's definitely red. It's not about crime fighting at all, super quirky and definitely about adventures.