Alonso Is Back! What It Means For F1 and Renault

Third time lucky? Renault just confirmed that Fernando Alonso has signed to drive for the Enstone F1 team for a third stint. What does this mean for F1? And can a driver who said he'd only return to a team capable of winning the Championship fulfill that ambition? Stuart Codling, Jonathan Noble and Luke Smith discuss the biggest issues around Alonso's return.