I didn't give much thought to vehicles until recently. I liked what I saw in the demo, and generally assume that player skill = better driving regardless of gameplay mechanics.
When it comes to the mechanics, I have concerns about the whole "your actions have consequences" stuff CP2077 is selling. In GTAs, you can plow through a bunch of pedestrians on the sidewalks and only have a small police chase which most can easily evade. If driving like a madman will incur actual penalties, the mechanics better be up to snuff to help ensure that those of us who aren't great at video game driving to not cause oursevles problems as we try to get to our missions and what not; a driving tutorial would be great.
Acquisition should be relatively straightforward. I think we'll get cars through quests, but the better cars we'll have to buy for ourselves. When online components get introduced, this acquisition will be more important. Stealing cars should be an option, and the consequences should be felt...if you're caught.