Even when it's time for me to up the difficulty, when I'm lapping the field on almost all tracks - the AI defends a stronghold at Imola. All car classes. I find it to be a somewhat difficult course to master due to the high speed turns, but unlike Suzuka where you make up time on the AI in the twisting section, at Imola they hold strong and then magic their way through that chicane near the end
I drove for an hour or so tonight with a few different classes at 90% and low aggression, and kind of wondered the same. The best I could muster in the Ginetta GT4 was P16. Though, it's probably worth mentioning I really never have been the best at this circuit.