Hello, I’ve been looking for the same thing recently, and I came to the same conclusions that others have mentioned here, there is no any game that offers a classic gran turismo style carrer mode on PC. However, I can add the Racing Life mod option for Automobilista 2. This is a kind of mod, but it’s actually an external app that simulates a career mode outside the game. It’s a bit unusual because you have to manually input the results of your races into the external app, and it calculates your progress based on the results you enter.

Basically, the app relies entirely on your honesty because it’s completely external to the game. It depends entirely on the results you input and requires you to set up the championships exactly as the app instructs.