Sure they can. http://sumplete.com is a new puzzle game, which its author says was invented by ChatGPT. If ChatGPT couldn't do anything new, then how did that game come to be?
Outside of a very limited test area and test market, self-driving cars have yet to even be used by the general public. Meanwhile ChatGPT's been adopted by en estimated 100 million people, many of which are using even just the free version to deliver value to the companies they work for. Maybe if ChatGPT was all hyped and unavailable to try by the masses it would sound like a lot more hot air, but it's open to anyone with an account, who can verify claims on their own. Not everyone will or has to walk away impressed, but when it does in a couple minutes what would have taken you a few hours, it's hard not to be.
In heavy rain and snow too?
Because the few videos I saw had pretty easy weather conditions, and even there machines aren't as good as concentrated drivers.
Same could happen with GPTs. Could be boring if all companies suddenly have the same texts because the asked the same model the same questions.
GPTs can write like somebody but they can't be somebody new.