The Reddit forum has a list of cars that are expected in Forza Horizon 4.
The author reports that he became aware of information about the appearance of 95 new cars in the game, and he also predicts an even greater number (up to 133). The data is impressive since the total number of vehicles that you can ride in the game Playground Games is 685 units.
Forza Horizon 4 already has 685 cars. And it looks like there will be a lot more
If the rumor is confirmed, then in Forza Horizon 4 there will be at least 60 cars more than, for example, in Gran Turismo 4, which could boast a figure of 720 units.
It is worth noting that the list is based on information found in the game files and some of the cars have already appeared in the project (those that are crossed out in the image).
However, at the moment, this leak has not been confirmed. It cannot be ruled out that support for Forza Horizon 4 will end much earlier than the author of the post expects.