Boris Johnson changed the wheel on a Formula 1 car in 16.5 seconds on a visit to Red Bull Racing headquarters in Milton Keynes. The Red Bull team normally takes 1.8 seconds to change a tyre. The prime minister drew a parallel with the length of time taken to "change this paralysed parliament". Report by Jonesia. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn