I’m playing with Camaro upgrades and I can’t see the difference between the Race rear wing and stock spoiler. I doubt that it’s made the same on purpose.
Edit: the model of the wing is missing indeed. There are also no icons on Forzavista “handles”.
Edit 2: When I pressed Drive in Forzavista while inside the car, the UI disappeared and nothing…
Edit 3: it works after game restart. Strange.