Renault's James Allison on R31's aggressive design

Renault's James Allison on R31's aggressive design: "This season's regulation changes allowed Renault technical director James Allison to rip up the team's design history and start again. Not only have they reinstalled KERS and incorporated an adjustable rear wing, they have switched to a pull-rod suspension for the first time in decades. And the Enstone team believe their revolutionary approach is set to bring ample rewards when the season gets underway. Allison reflects on his 2011 preparations"