I love playing Forza Horizon 3 since the release of the game. I had been noticing something for awhile now that has been bugging me ever since. And that is while driving, the wheels start to look flat. Like it replaces the 3D model of the wheel with a flat texture or something. To me it just looks ugly, not sure why it does that. One of the best cars to test this in, is a stock 1994 Ferrari F355 Berlinetta. I looked at the other Forza games (Motorsport 6 and Horizon 2) and found that it does the same thing too.
Hi, people reported this a long time ago, nothing was done about it ever since. I guess, this way the game optimizes performance.