Two Options I missing in all rFactor1 F1 mods as of today: - Limited number of tire sets for a race weekend - Opportunity to select used tires - Engine wear rate continuously growing until engine change (only allowed every 5th race w/o a penalty according to FIA rules) - Engine power loss depending on wear rate I'm not sure whether rFactor1 does not Support it or whether the Mod creator are not paying attention to this. But I think this features are on the list of every Formula 1 interested driver.