Simulation Dirt Racing Dirt racing tires are now enabled on many NASCAR stock car type vehicles. These tires load automatically when an appropriate vehicle is loaded onto a track with a dirt surface. This change includes the following vehicles: ARCA Menards Chevrolet Impala NASCAR Chevrolet Monte Carlo - 1987 NASCAR Cup Series Chevrolet Camaro ZL1 NASCAR Cup … [Read more...] about iRacing 2021 Season 2 Release Note Highlights and Commentary