Porcshe being sued in Paul Walker case

Apparently the widow of the driver thinks that the car was only going 55. I'm sure the DOT tested the evidence already, but if the memory chip from the airbag is intact, it would tell the real speed at time of impact. [quote]But the lawsuit blames the car’s suspension, not speed, saying that the right rear tire suddenly steered to the left, causing the spin that eventually put the Porsche into a light pole and a tree.[/quote] I've never seen a tire suddenly steer a direction by itself without a suspension part failing. But one tire alone at 55? Sounds very unlikely to me.