Suggested

15% parts rule

If car parts are 15% or lower, driver of that car isn't allowed to race. Goal of this rule is to increase safety and to prevent last laps VSC

I agree completely, its a little bit ridicules as it is at the moment

Very nice idea. 

Then it’s not 15%, but ~ 30%. Because they do not finish race cars. And in the next race they will start again with ~ 30% balance of parts and engine

I didn't know correct number, so I choose 15%, but I will take 30% 

you would do more for the league host. namely, turning on / off flags and car safety in racing.   Or activation of the threshold for preventing a player from racing if his car has worn above the designated one. Also add permission to use KERS to a specific circle. For example, in some leagues, players agree not to use KEPC a few laps before the finish. It would be nice if the feature was in the league settings.It would also be nice to make two mandatory types of tires in the race. The host could enable / disable this option. We need to make more options for playing leagues! More features for the host. And then at the moment the league hosts have their hands tied. And all the options for the game have to be discussed and agreed upon honestly.

Maybe best option is that car should be fixed up to 50% (or level that selected by host) by game itself automatically when car condition is lower than 50%. 

It would help if we could repair the car in chunks, say 25%, 50%, 75% or 100% with each amount costing an equal % in parts so for example, if your car was going to cost 12 parts to fully repair, if you only had 5 parts, instead of not being able to repair it, it would cost you 3 parts to repair your car by 25% so you could still repair it, just not fully. That way, at least you could carry on racing