McLaren has become the second team to unveil their 2012 challenger after the wraps were taken off of the MP4-27 in Woking.
The car is to be piloted by Lewis Hamilton and Jenson Button.
McLaren will hope to provide a greater challenge to Red Bull than in 2011, when they finished a distant second, although remained ahead of Ferrari for a third consecutive season.
McLaren last won the Constructors Championship in 1998.
Ferrari will be the next time to unveil their 2012 car on Friday, with Force India following suit later in the day.
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