Spain Preview – who’s taken the biggest step forward?

The world championship battle really starts this weekend as the Spanish Grand Prix signals the commencement of the European leg, if you believe Ferrari’s Fernando Alonso.

As his national race celebrates its 40th running since 1951, the Spaniard lies third in the title chase with 49 points to McLaren’s Jenson Button’s 60 and Mercedes GP’s Nico Rosberg’s 50…