Mercedes F1 W05 Hybrid - lightweight nose 24 August 2014
Mercedes introduced a slightly modified nose in Belgium, slimmer in the side walls and with a greater blend radius allowing the airflow to get out around the sides of the nose with less resistance. This improves the performance of the front wing and the underfloor. Another key benefit is that it is lighter (and hence needed to undergo another crash test). Since the beginning of the season Mercedes are believed to have saved 8kg on bodywork pieces alone. Assuming the car was over the minimum weight limit, this saving is worth something like three-tenths of a second per lap. If it was on the weight limit then it allows the team to place the weight in a lower position on the car, again improving lap time and, more importantly, tyre degradation.