Board Thread:Game Discussion/@comment-40257166-20190723202634/@comment-4939977-20190725000852

2018 NASCAR cars cannot be purchased as of January 2019 due to licensing issues. They had to preserve the motorsports license for NASCAR and Supercars, so if you don't own any of those cars before then, they are gone from the game forever.

If you do have those cars before then, they stay in your garage.