When you think about three Ellas, the first thing that comes to mind might be Rihanna's song Umbrella. But for people working in the McLaren Formula 1 garage, there's a reason why they're always humming the 2007 hit. Their three Ellas - Ella Häkkinen, Ella Lloyd and Ella Stevens - are all part of the team's Driver Development Programme, which offers guidance and opportunities. And in a sport traditionally dominated by men, the Ellas are all keen to make their mark, aided slightly by horses and