EDITED POST: Another thing I've noticed, which is kind of a carry over from posts of ages past, is the behaviour of cornering and track calculation changes largely on the relative change of drivability. This leads to some unusual interpretations, for example:
1) A lightweight naturally aspirated fun car with a sportiness and drivability of both 40, doing the downhill Haruna Touge. Taking off traction control or ABS makes it slightly slower down the hill. Taking off power steering makes the car slightly lighter, but also penalises its drivability to about 37.6, thus still making it slower down the hill.
2) An ultra-specialised top speed 500km/h prototype with 2200hp and a torque curve more extreme than Nicki Minaj's rear end. Has a drivability of 0, no matter which way you look at it. Taking the driving aids off does
nothing to this car's time (except taking out the power steering makes the car a bit
faster), despite the fact in reality, it's pretty much like a modern jet fighter that will almost guaranteed fall out of the sky/drive straight through the barriers and explode on impact if you turn the TSC and stability control off
This is something that's been around for a while... and indicates that a) the simulated driver is demonstrating the theoretical maximum the car is capable of (if using the full BROBOT system, of course, I'm quite sure the latter car would pretty much commit serious errors on every single corner) b) it still doesn't differentiate between the different factors that lead to a particular drivability score.
So, two questions: 1) Is it possible to take different factors from the drivability score and integrate those into the calculations, such that, for example, having a massive penalty to torque curve, which is why my car 2 has 0 drivability in the first place, would mean taking the traction control off has a much bigger impact on either the drivability value or track time, or to draw a parallel, having a really crappy dynamic response and turning the stability control off, and 2) is it possible to simulate multiple tiers of drivers ranging from average civilian to The Stig to Robot?