'All our worst case scenarios at once' Dr Ian Roberts and Alan Van Der Merwe on facing Grosjean's horror crash plus James Key on McLaren's third place chances

TC and Alex are joined by Dr Ian Roberts and Alan Van Der Merwe to hear about making sense of an accident scene with every second counting, practicing for worst-case scenarios, how unseen footage detailed Romain Grosjean's escape after the 53g impact and why they’re not surprised Romain wants to return to racing (6:53).  Then hear from McLaren technical director James Key as the team juggle three years worth of car projects at once. (21:49)