I just want to mention the great safety advances in car (and race) security in the last 20 years; since 1994 and the deaths of Ratzenberger and Senna there has been no driver fatalities in F1 racing.
edit "Following Senna's death in 1994, no driver had died from injuries sustained in a World Championship-related accident until María de Villota died in 2013 from complications of injuries she sustained in a testing accident the previous year"