in my experience, i drive mostly on 100 difficulty, on fast locations like sweeden, finland, poland etc. i win by minutes over the course of an event, but on locations like mexico, monte carlo etc. they seem to have impossible speeds through tight turns, losing several seconds to them in a single sector, and then in a high speed section on the same stage they're suddenly slow again, it's like they're not using 100% throttle on straights, and somehow take hairpins at 200km/h. it is possible to beat the AI on mexico, but it is very hard, due to what i can only imagine is AI cheating in hairpins/tight turns in general. though it's probably very hard to the devs to balance the difficulty of the AI across all the locations in the game, as is evident by the vast difference in difficulty across locations.
