Can Aston Martin really challenge Mercedes and Ferrari?

Matt Baker, Simon Lazenby, Naomi Schiff and Karun Chandhok are this week's Sky Sports F1 podcast panel!<br /><br />The group discuss everything F1 related, including Max Verstappen and Red Bull's opening race victory in Bahrain, Aston Martin challenging Mercedes & Ferrari and Lewis Hamilton's mission for his 8th world title.