The mysterious guy at the house on Maggie's questline implies it wasn't actually an accident, based on how I read it. I can't recall if Wyatt says anything at that time, other the getting upset if you beat him up.Mc should get a PHD on dumbassery !, the fact that he can't put 2 and 2 together to conclude that Nathaly is a corporate spy and for some reason even Maggie rub me the wrong way (pun intended) , all that drama about her mother and her stepfather sounds like hogwash , Maggie and Nathaly are two faces of the same coin.
it wouldn't surprised me at all if Lily's tragedy wasn't an accident at all , maybe that was the only way to make the Mc vulnerable so he let his guard down and be an easy prey for Maggie or Nathaly , so either can steal the battery thing.
When you find Wyatt, after the above scene, he's waiting at your car after the one race, I *thought* he said something along the same line as well.
If it's Wyatt, it seems more like his obsession with Allie and wanting to get Jake and perhaps Lily out of the picture. But he's obviously "in" with whomever the mystery person on the Maggie questline is... as the guy says he can control Wyatt, but obviously can't as he shows up at the race afterwards to threaten Jake.