Martin Whitmarsh: "... we have made some initial progress and I believe up to China we will make some more."
Vodafone McLaren Mercedes' driver Sergio Perez laid down 100 laps on first day of the final round of testing before the Australian Grand Prix next month.
McLaren's new contender for the 2013 Formula One championship fight was showcased to the world at their headquarters in England. Martin Whitmarsh recalled the past in his opening remarks.
McLaren will launch its 2013 Formula One car on Thursday 31st January. Watch the trailer.