i think most of the tracks in lfs ARE challenging. there are a lot of difficult combinations on the lfs tracks. i still don't see where those 3 mentioned tracks are more "technical" than lfs tracks.
most of the parts of these tracks have similar counterparts in lfs.
having to unlock the cars is just a waste of time.
winning races against the AI or taking some tests won't teach ppl how to race.
they will do everything they can to make it easier. there is always a trick.
And racers who don't need that are bored by that, because they just want to race online.
i am ok with turbo boost, but i don't like the push to pass button. is it ok if overtaking with a f08 on unoff2 is extremely difficult. the track just isn't made for these type of cars.