Renault R31 - forward exhausts 27 November 2011
For many the season's biggest technical disappointment has been Renault's innovative forward-facing exhaust system. After raising eyebrows - and the pulses of engineers at rival teams - ahead of the start of the season, the solution failed to deliver, with the team realising pretty quickly that it was uncompetitive. The heat generated also proved damaging and Renault were forced to increase the amount of protective metal casing around the exhaust as the season progressed. The inset shows the exhaust at the start of 2011 whilst the main one shows what will be raced in Brazil.