Mercedes F1 boss Toto Wolff says changes to next year's aero regulations inevitably entail slower lap times for Grand Prix racing's 2021 cars. In a bid to limit costs, teams must carry into 2021 their current chassis. However, with this year's increase in downforce putting Pirelli's tyres on the limit of their resistance, the FIA has mandated a series of aero tweaks. While there will be changes to the diffuser and brake ducts, the most significant modification will involve a reduction of the rear outer floor area of a car, the trimming of which will impact downforce levels. In-season development will likely allow teams to recover a portion of the last downforce, but slower lap times will...
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