Four drivers - Nico Rosberg, Daniel Ricciardo, Nico Hulkenberg and Carlos Sainz - have been testing the Halo cockpit safety device during FP1 at the Belgian Grand Prix,
Four drivers - Nico Rosberg, Daniel Ricciardo, Nico Hulkenberg and Carlos Sainz - have been testing the Halo cockpit safety device during FP1 at the Belgian Grand Prix,