McNish explains 2014 rule changes

BBC Sport's Allan McNish explains Formula 1's "biggest rule change in a generation" ahead of the Australian Grand Prix.

Engines have turned from 2.4-litre naturally aspirated V8s, which have been in use since 2006, to 1.6-litre V6 turbos, along with radical aerodynamic design changes which stipulate front and rear wings on the cars should be narrower.

Mercedes driver Lewis Hamilton grabbed a last-ditch pole position in a thrilling wet qualifying session at the Australian Grand Prix, the first race of the 2014 season.

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