Thanks for your reply! Are those cars all included in the base game or are they DLC packs that you had to buy as extra? How do you find the quality of the AI to race against? Is it difficult to create seasons in the game?
All the cars actually paid mods. The GTs are by the Race Sim Studio and the Prototypes by Virtual Racing Cars group. AI are decent, the content manager for AC lets you fine tune aggression and skill level for each opponent. And to be honest although AC supports seasons, I run each race as completely standalone and use an excel sheet to track the championship.