First look at F1 teams' updates for the Spanish GP

The Spanish Grand Prix is always the scene for big update packages from Formula 1 teams, and ahead of the track action starting on Friday, Edd Straw is joined by Giorgio Piola to take a look at the new parts that have appeared at Mercedes and Ferrari already. They also discuss what to expect from Red Bull, and which midfield teams could be the most interesting to look out for when the action begins.