You can never stop thinking about safety. There are always new improvements coming along. The people who work in the sport are creative and new ideas like deformable crash structures are fantastic.

It will be great to work with Rowan as he's a good racer and races in his own cars,

He is such a genius that I had to work in his film. He is constantly thinking about his next shot, constantly innovating to make it better. He is sure about what he wants from his actors.

There has been a huge advance in technology, which has improved the safety of the cars incredibly, but there are still some heavy crash impacts and in certain circumstances there is still the chance of fire today.

It takes leadership to improve safety. And I started off the movement in my time, but the person who has done more over the past 20 to 30 years and who has led it is Professor Sid Watkins.

These people work long hours and are underpaid. To increase production, these factories neglect the safety of their staff.