All NASCAR teams are struggling for dollars and many are just barely surviving. So NASCAR decides to change the cars for 2021 including 18 inch tires. This going to be huge expensive for all the teams and possibly game changing for some of the smaller teams. At one time NASCAR said they were going to try and hold down costs, so much for that idea. I don’t know how many cars Team Penske has in there shop but it is a lot. A couple wrecks can put a small team out of business what will this do to them.