Kimi Raikkonen is adamant Lotus is capable of building a winning car, as the team unveiled its 2012 challenger to the public on Sunday.

The Finn, the 2007 world champion with Ferrari, is returning to grand prix racing with Lotus after having left the sport at the end of 2009 to compete in the World Rally Championship.

Lotus, racing under the Renault name until last year, won its last race in the 2008 season with Fernando Alonso and has struggled to be competitive since.

Raikkonen is confident, however, that the team has what it takes to return to winning ways.

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