"Forty is brilliant and I love it. I'm happier now than when I was 20." — Richard Hammond

I damaged all the complicated bits of the brain to do with processing and emotional control. I was prey to every single emotion that swept over me and I couldn't deal with it. I had to re-learn things from scratch.

I had post-traumatic amnesia, five-second memory, it happens as a result of brain injury.

I mostly drive around in a Fiat 500 TwinAir, and that's a pretty small car!

For somebody who has injured their brain, every single thing they say and think will be the subject of their own questioning.