High expectations on Hartley as he hits the track

There's a lot of pressure on Palmerston North driver Brendon Hartley to perform as the Formula One season gets under way in Melbourne. The 28-year-old is the first New Zealander to secure a full time Formula One drive since Chris Amon in 1976. Hartley's Toro Rosso team is not expected to be challenging for a win at Albert Park on Sunday, but the cars showed unexpected speed in preseason testing. We talk to motorsport commentator and former McLaren F1 team member Bob McMurray.