Lotus has set its sights on a top-three finish in this year's Formula One world championship after becoming the first team to unveil its car for the forthcoming campaign.

Lotus driver Kimi Raikkonen and team bosses gathered at their headquarters in Enstone, Oxfordshire, on Monday to reveal a car they believe is capable of making a significant impact on the track this year.

With few significant changes to the regulations for 2013, the E21 bears what technical director James Allison described as a "family resemblance" to last year's model, but with some key improvements. Last year Raikkonen finished third in the drivers' championship, with Lotus finishing fourth in the constructors as it amassed more than 300 points, just 75 adrift of third-placed McLaren.