Amazing! Just last night, I watched the BBC show Grand Prix - The Killer Years, and to see the intervention team here, just pull up from behind the race cars at the start is incredible. What a contrast to the way things were many years ago.
The show finished by stating that the final turning point in the push for safety was the 1973 race at Zanvoordt (spelling?), where Roger Williamson blew a tire, flipped the car, and burned to death while no one but the driver of the car behind (David Purley) did anything...