Lewis Hamilton 's utilisation of Mercedes ' innovative Dual Axis-Steering system (DAS) in practice for the Austrian Grand Prix has seen Red Bull question the FIA about the technology's legality. Mercedes unveiled DAS during testing in February as they underlined their status as F1 's most ground-breaking team. Hamilton was spotted trying out DAS on Friday morning as Free Practice 1 unfolded at the Red Bull Ring in Spielberg. Red Bull are among the teams understood to have doubts over the legality of the innovation and team principal Christian Horner has confirmed in Austria that motorsport governing body the FIA have been made aware of its use. READ MORE: Express Sport experts predict how 2020 F1 season will unfold

Source: Express July 03, 2020 12:38 UTC