Challenging little tyre wear experiment with tyre wear acceleration

In the Realism menu choose Tyre Wear X7 (max), go to any course and put on Changeable Rainfall (make sure you get a sunny hot 30C+ day, though), put softs on, and then try racing around the track. Valencia is a good track for this, usually sunny there.

You should be wearing your tyres at a rate of 2% per lap or so.

By the 3rd or 4th lap it should be starting to get VERY challenging but in a sort of good way, almost approximating the real-life challenge I would imagine.

Your soft tyres will overheat after 3 laps so try the same thing again with mediums to have fun for longer.