This would likely only be useful for league racing, but it would be nice to have a tire compound upgrade that has the same grip as one of the three current race tires, but does not allow for the “soft, medium, and hard” compound options.
At the moment, leagues don’t have a way to ensure all competitors are using the same tire compound in a race. And while it can provide interesting strategy races, there are a multitude of IRL series that don’t use multiple compounds in competition, and it would be nice to have the option to properly emulate this. (Especially in the NASCAR scene.)