The team were hoping to reveal their 2012 car - the CT01 - on Thursday on the front cover of F1 Racing magazine.
But subscribers to the magazine received their copies today, so the team decided to release an image of the car through their official Twitter feed.
The CT01, which will be powered by Renault engines, features a platypus-style nose with front suspension mounts that raise above the noseline. These features are set to become familiar this season due to new regulations covering the nose area.
The car is scheduled to make its track debut at Jerez next month when testing kicks off.