I started driving in China in the 90s with a small cheap yellow Xiali. That was fun.
Nowadays I have a few friends with German made luxury cars, and I could borrow one of them at any time. But thanks, no thanks. I prefer them driving me around. Especially at the daytime (night time maybe, but I don't see a reason). And if you plan a road trip to a place further away, you can always rent a car in Shenzhen, there are lots of rental companies.
My wife is from Shenzhen and her family and lots of friends stay there. It would have made everything so much more civilized if we could have just driven across the border during the past decade. But now, with SZ Bay Bridge, it takes me $200 and a taxi ride and 30 minutes to be in the middle of Nanshan. If I use the West Railway and the B2P bus it's 1h. I used to line up for an hour or more in the middle of chaos in Lo Wo, after spending an hour to get there by MTR and KCR. Don't even get me started on getting back through Lo Wo Railway Station. So things have definitely improved.
I still have a lot of credit with one of these cross border license coaches, but we rarely use it. It's more convenient for sure, but I don't think it save a lot of time honestly. You line up at the border with a few cross border vans in front of you all opening trunks and stuff. It takes forever. This line can only become longer if they allow private cars for fun rides.
I should think about reselling that credit, because we've had it for years and if that company goes bust it's gone, but that's another story.