I keep seeing people say the reason why GTS looks better than FM7 in some instances is because of less cars etc... Forza 5 has way less cars than FM7 so why does FM7 look better? Did the car models get worse because they added way more cars? Also don't Horizon and Mainline Forza share car models?
If you're talking about the car models themselves, wouldn't the obvious answer to this be that Forza Motorsport 6 and then 7 would be building on top of the cars already present in FM5?
Forza 5 has less cars because they all needed to be redone from Forza Motorsport 4 that released 2 years prior, the cars that FM6 then has would be the result of the 2 years of cars from FM5 combined with an additional 2 years of cars for FM6, and then the same again for FM7.