The team management claimed that the car was "more evolution than revolution with the removal of the 'step' nose being the most obvious visual change".
Race Driver Paul Di Resta pulled the covers off the VJM06 to mark the unveiling of the car at the Silverstone circuit.
The VJM06 is the third car to be overseen by Technical Director Andrew Green and builds on the strengths of the 2012 car.
Team Principal Vijay Mallya said that there was not massive change in the new car but hoped it would performed better than the earlier car.
"The VJM06 doesn't look massively different to its predecessor, but beneath the skin we've looked at every detail to try and find more performance," Mallya said.
"I've followed the development of the car closely and I'm proud of what we have achieved. The objective now is to make sure we build on the promise of last year and have a strong start to the season," he added.
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Di Resta, half of the team's 2013 line-up, was delighted to see his new car.
"Seeing the car built and complete for the first time is a special feeling. I've followed its progress in the tunnel and it looks very impressive -- aggressive and fast. Now I'm just eager to get out there and see where we stand compared to our competitors. After the winter I feel refreshed and keen to get back to business," he said. MORE