This is an issue that has been happening for several years now, so I’m taking the opportunity to at least raise it officially and hopefully get acknowledged for an eventual fix.
The EB110 has some homologation markings in the headlights, several ones in the upper inner area, and one in the lower inner area, as shown below (1st picture, left, corresponding to the real car)
In Forza Motorsport 4 (2nd picture, middle), the headlights were perfectly recreated down to those fine details, however, in the latest entries of the game, including FM 2023 (3rd picture, right) not only the markings have disappeared but also the (defrosting?) orange lines are also incorrect, they used to be as thin as in the real car, and now they are too thick and out of scale overall.
Also worth noting, though already reported, is the mostly-green indicator and the incorrect hue of blue used for the car body color.