Apparently now the French police are investigating the crash. They are interviewing witnesses and the riders, if possible, before the Tour leaves the area. Here’s the link:
http://nbcsports.msnbc.com/id/43713268/ns/sports/
What I don’t really understand is what else they can learn from interviews beyond watching the video. I think it’s quite clear that the car was riding along the side and swerved to get around a tree but went too far and hit the riders. It looks like the driver thought he could accelerate and thread the needle between the car and the riders but he was mistaken- badly as it turns out.
Even though the crash does look like a typical move somebody makes when they're startled by obstructions in the road (drivers instinctively turn the wheel toward whichever hand is dominant), I'm still hoping somebody did an immediate blood alcohol test on the driver.
I hate to say this, but when I first saw the crash and rewound to try to make out the sign on the car & saw it was a France 2 vehicle, I instantly thought of Princess Diana's crash. The investigation showed her French driver had ingested an ungodly amount of booze in her Parisian hotel's bar downstairs right before she stepped into the car that night.
Evidently Hooglander & Flecha's respective teams are doing their own investigations to be sure their riders' interests are served and at least one of 'em is not ruling out legal action. Via UK's The Guardian, Team Sky May Sue Over Flecha Car Crash