Max Verstappen gave Red Bull their first race win during the 2019 Formula 1 season. Following two weeks of analysis team boss, Christian Horner says Red Bull remain unsure why they were so fast during the Austrian Grand Prix weekend.
"We still don't know exactly why we were so strong there," Horner told Auto Motor und Sport at Silverstone.
"The new front wing was certainly a step in the right direction, but we did not expect that step to be so big," he concluded.
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