Martin Whitmarsh said F1 must strive to keep up the action-packed racing it has produced in recent years.
Martin Whitmarsh says McLaren should avoid a repeat of their poor start to the year in pre-season testing in 2011.
McLaren drivers Lewis Hamilton and Jenson Button say the ban on exhaust-blown diffusers will make driving more difficult in 2011.
Compare the new McLaren MP4-27 with its predecessor.
McLaren have launched their 2012 F1 car. The MP4-27 was revealed today at the McLaren Technology Centre.
In the round-up: McLaren will launch their 2012 F1 car today.