There are five central characters in Final Fantasy XV. The first four are young men with impeccable hairdos and absurd names: Noctis, Gladiolus, Ignis, and Prompto. The fifth is a sleek black convertible stately enough to be named the Regalia. Like every other Final Fantasy game, XV is about a long, dangerous journey across a fantastic landscape. Unlike the rest of the series, though, it doesn’t hang its story on the stuffy conventions of a Lord of the Rings-style cross-country wilderness hike, but through a road trip. The car, in Final Fantasy XV, is a central character. The Regalia is…