How many cars are there?
Not a total, not a manufacturer roster, not a top speed, not a class breakdown, not a single handling figure. That absence is the whole story, because the lists filling this search result are not reporting a document. They are reporting an activity: enthusiasts pausing official footage, comparing a silhouette against vehicles from earlier games, and writing down a name.
It is skilled work and it is often right. It is still an identification, and an identification is not a confirmation — the person making the claim and the person who would have to confirm it are not the same person.