Why are car companies now tech firms?

What you drive has always said a lot about who you are – and car-making has defined the identity of whole towns and cities in the UK. But this is only partly an episode about cars. It’s also about what the changes in the car industry tell us about the massive disruptions that are happening all over the place, shifts that are changing the way things are made, the jobs we can get, and the way business works – the future essentially. BBC Business Correspondent Joe Miller prepares us for what’s next.

Producer: Harriet Noble Mixed by Weidong Lin Editor: John Shields