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Force India have become the latest team to unveil their car for the 2011 Formula One season - a car which is radically different from its predecessor.

The VJM04 was created by the team's new technical director, Andrew Green, who 20 years ago helped build the Jordan 191. New FIA regs means KERS is back this year, and although the team tested out a system in 2009, it was never used, so this year will be the first time they use the Mercedes unit - both smaller and lighter than its first incarnation.