Williams driver Felipe Massa has insisted that their radical rear wing modification was meant for data collection purposes rather than improvement in speed at the two-day in-season testing in Barcelona. During testing, Williams implemented a rear wing design that included a double-decker configuration and extra weight, which Massa explained was used to gather information on aero flux so that they could figure out the balance of the FW38 properly. The strange design would be illegal if it was to be used during qualifiers or race day. The former-Ferrari man also added that they were collecting data for next year as well so they were trying out all sorts of upgrades. 'For sure this wing is...
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