My only fear with the car is that it will be on rails but I'm hoping that is not the case. I don't mind the car, though automobiles were featured in FFs I don't care for I don't list their existence being the downfall for said games. A road trip style game might be fun. Of anything I'm hoping to see more on combat because field combat doesn't look as exciting as the city battles but that might be because open fields are less intuitive with teleport spamming.

How SE chooses to play with sci-fi or fantasy tropes comes down to the story. If it works, hurray, if it doesn't, well there is always FFXVI in 202X.