Ex-Formula 1 driver Karun Chandhok is now racing in the all-electric Formula E. In the video posted by the official Formula E organisation, India's most popular racing driver talks through a lap of the temporary Battersea Park circuit in London - which is as frightening as it is narrow.

It offers an interesting insight into what a racing driver must think about while driving - and that's before you add 19 other cars.

Chandhok is currently 17th in the FIA Formula E Championship with 18 points.