The number of Uber vehicles in London will be capped if Labour's candidate Sadiq Khan wins the election to City Hall in May.The Guido Fawkes website reports that Mr Khan has called TfL's decision to allow Uber onto the capital's streets was a "mistake", adding "let me tell you what I will do. I will make sure we have proper regulation around private hire vehicles. I want a cap on the number of private hire vehicles.'On his page, Guido calls this "a particularly direct attack on consumer choice", and warns for higher fares for Londoners.