I can't believe I have to add to this train wreck of a thread, but I just couldn't let this go by.
2nd part: all street racing?.... Detroit, Toronto, & Montreal Grand Prix's, F1 cars racing through the city.... like those street races?.... they don't repave Detroit, Toronto and Montreal every year for those races with special "racing pavement".... nor do they knock the city down so the cars can slide safely.
There are two meanings associated with "street racing":
1) Bunch of idiots using the public roads as a race track whilst the roads are open to the public. This is illegal and STUPID
. This is what happened here, they were idiots.
2) An officially sanctioned event where the public roads are closed, safety barriers are erected, track is checked (and sometimes sections are repaved if too damaged), marshals and medical staff are present. This is legal and whilst not perfectly safe, is as safe as people can make it.
It doesn't matter what the cause of the accident is, they were driving at racing speeds on open public roads which is stupid.
If you do work out that there was some completely unprecedented breakage on the car, it doesn't alleviate them from being idiots by street racing. The two are orthogonal. Even if they hadn't crashed they were still idiots for driving like that on roads that were open to the public.
I have a strong interest in accident investigations and love reading aircraft incident reports and such from an engineering perspective. I would be interested to find out what happened here but the strongest odds are the driver ran out of skill and that is simply not that interesting.