Leading up to this weekend’s race, organisers in Las Vegas were trying to paint a picture of a maturing and established event. That message was undermined somewhat when a loose manhole cover derailed practice on Thursday night . It brought back worrying memories of F1's first race on the Strip two years ago, when Carlos Sainz's Ferrari sucked up a manhole cover and destroyed the car. Thankfully there was no such disaster this time, beyond valuable lost practice time on a tough circuit to get to