Racing cars are really like upside-down aeroplanes, using their aerodynamics to stay on the ground rather than take off.

ECONOMIST: The formula that drives Formula One

Wirth has decided to design the new Virgin car without using a wind-tunnel, a tool for shaping a car's aerodynamics that has been de rigueur in F1 for 30 years.

BBC: Lucas di Grassi joins new-look Virgin Formula 1 team