As a result, the rubber will maintain optimal grip throughout a wider pressure window. In update 1.9, ACC now has a wider window of operation for the tyre pressures. Here are just a few simple tips to help you adapt to the new ACC 1.9 update. Now it’s time for you to try it out and see how you get on with the overhauled physics included in this latest version of the game.īefore you dive in, however, there are a few things that have changed drastically from the previous version of the game. You’ve seen what we think of the new update to Assetto Corsa Competizione. It changes it so much in fact that drivers must adapt in many ways in the new ACC 1.9 update. The most recent update to Assetto Corsa Competizione changes the game.