I've never heard Joe talk about an interest in cars, but we know he has several very nice cars. I think it's just a super rich guy staple to buy 5-6 luxury cars even if they aren't super into cars.
Joe's Porsche is mentioned all the time and I think it's the car he's seen driving the most. I don't know much about cars so correct me if I'm wrong, but I have seen people say the model is a Taycan. Here's some pics and a short video of him leaving the stadium in it
I've seen multiple articles mentioned Joe has another sports car called an Acura NSX. But I can't find any pics or videos of him driving it, so he either doesn't use it much or the articles got it wrong. But this is what that car looks like:
Joe was sponsored by an electric truck company called Lordstown Motors in 2021/2022. They went bankrupt in 2024 and I don't think Joe has that truck anymore.
Now he's been seen driving a Rivian electric truck. (Sorry for the potato quality from a Reddit post.)
I've also seen some articles claim Joe has a Range Rover, a corvette, and a Mercedes-Benz G-Wagon. But I can't find any pics or videos of him in those cars and most of the articles on his car collection don't mention those, so that may not be true.
And of course, he bought one of the Batmobiles used in Nolan's Dark Knight trilogy. I don't know if he actually has it yet, since he said he wouldn't get it for about a year after buying it, but that was last fall so he should be getting it soon! It's not street legal though, so we may not see him actually driving it.