Having given it some thought I think the most damning evidence is that the car went from neutral back to drive (as per the black box). This shows intent in my mind as if one of the boys had put it into neutral, someone (ie her) had to put it back into drive again. Also, the road is not that straight, apparently it’s fairly winding and would need someone to steer along it in order to get to the building (so if she’d passed out they’d have hit something sooner). The car would need some steering whilst it accelerated to get to 100mph.
However, apparently it is possible (but unlikely) that the foot would remain on the pedal if falling into unconsciousness. I also think it is entirely possible that she doesn’t remember the crash - this is really common. However, very convenient they it’s from the corner where she’s driving appropriately (it’s often the whole day before etc). And if she doesn’t remember anything how can she be sure it wasn’t in anger? In their toxic relationship she certainly made threats and likely he did too. Even her mum’s ’new evidence’ that it was Dom that grabbed the steering wheel weeks before might have given her the idea in anger. There are many videos of her driving really fast, smoking weed whilst doing so and accelerating with her left foot (so not on the brake). She was known for getting angry whilst driving and friends were warned not to be driven by her. All this makes her a likely candidate for you by her car as a weapon.
I do think that many of us find it hard to believe that she’s guilty just because it is so inconceivable. There’s another case of a young man (Daniel Waterman I think), whose girlfriend did something similar but he woke from his coma to give a statement before also sadly losing his life.
Whether she was suicidal or just thought she’d get away with it is anyone’s guess. I don’t think she was able to think that through, just like I think she thought she’d get away with it just like her parents allowed her to get away with everything before. She grew up being able to behave in any way she liked, that she deserved to be famous and her behaviour would always be excused. Her parents are awful and were complicit in creating a monster.