The workshop recently organised in Brussels was dedicated to the safety of renewable energy. Two presentations concentrated on hydrogen, see http://www.enero.eu/page.asp?id=126&langue=EN. The first given by C. Proust from INERIS showed some interesting results of experiments with type 4 vessels. The other presentation given by T. Jordan KIT showed the results and services of the HySafe network.
Archive: March 2010
GM hydrogen Equinox impacted from front and rear
So the real world hits hydrogen cars too , see http://content.usatoday.com/communities/driveon/post/2010/03/gms-hydrogen-fuel-cell-fleet-getting-real-crash-experience/1. To my knowledge this is the second accident with a fuel cell car. Not only for statistics we need more hydrogen vehicles proving their inherent safety.