One really nice feature in Project Cars 2 is the Driver's Network functionality that tracks the drives of each car/track combination. You can scroll through the leaderboard and choose those to use as ghost cars to hotlap against and even download their setup. It's such a fun and useful tool for learning and improving and seeing where you stack up against all the other drivers. This seems like a must have in future games like AC, PC, Gran Turismo, etc.