Renault R28 - engine cover shark fin 26 April 2008
Renault have also included a heavily revised engine cover as part of their pre-Spanish Grand Prix aero updates. This full-height shark fin profile (circled) is almost identical to the one introduced by Red Bull before the season's opening race. This revision has been made to improve the car's rear-end efficiency and balance, and improve its straight-line stability at high speeds. This addition, according to a Renault engineer, is not just for the Barcelona race but will be used for the season's remaining races, albeit with ongoing development changes.