This issue has persisted since Forza Horizon 1, where this car debuted as paid DLC content. It was featured in all consecutive Forza titles, all with the same model and customization (lacking the Allroad kit since FM5). While it is not as deformed as the early Forza models, such as the RS4 B7, it is still inaccurate even compared to the only other B8 Audi available on Xbox One Forza games - the S4 B8 Limousine.
The front end of the RS4 B8 is ruined by the slightly misshaped front bumper and the oversized headlights. There seem to be multiple issues with the side line of the car as well, on their own they’re fairly minor. The rear end seems to have got the same kind of inaccuracies as the front. By far the worst part of this model is its body kits - every single one of them is deformed. Wrong shapes, wrong sizes, low quality. The Abt kit is based on the A4 front bumper, and the S4 front bumper is vastly modified to fit the Charactere kit for some reason. It’s egregiously wrong even compared to the actual S4 B8 from FM5 and FH2.
I was sent this gif, and although it is not precisely lined up, it does show the biggest issues with the front end of the RS4 B8.
The Audi RS4 B8 should be rescanned completely, as the current model is an Xbox 360 model.
