This is the Formula RSS 3 V6 of Assetto Corsa by Race Sim Studio, a car based on the specifications of current modern Formula 3 cars and advanced drivers.
The 4 best races from each week count in the overall standings
A real penalty system enforces correct DRS usage. You can use DRS only when you will hear a beep and the real penalty DRS indicator will turn green. If you use the DRS incorrectly during the race you will get a drive-through penalty. The rules are like in real life. In practice and qualifying you can use DRS in the DRS zones. In the race sessions, you need to be 1s or less behind someone to be able to activate DRS in the DRS zone.