Project CARS 2 is currently on sale right now on Steam. The racing-sim has been temporarily discounted by 60%, bringing its price down to just $24. But if you have some extra dough, you might want to opt for the Deluxe Edition of the game which is also on sale for $36. That version includes five DLC packs (all of which have extra vehicles) along with the season pass. None of the individual DLC packs have been discounted in this sale, so the Deluxe Edition is certainly worth a look.
As of the time of writing, this sale is going to last for 36 more hours. So, you have until about noon (Eastern time) on September 14 to take advantage of the savings.
For the uninitiated, Project CARS 2 is a racing-simulator in a similar vein to Forza Motorsport and Gran Turismo. It features 180+ licensed vehicles and complex driving mechanics. It prides itself on its visual prowess which includes full dynamic time-of-day and weather, along with support for 12K resolutions and even VR. It launched last year to positive reviews, so do give it a look if you enjoy sim-racers.