There was only one talking point in the Formula 1 paddock on the second day of pre-season testing, as Mercedes debuted its dual-axis steering system.
The device is used to adjust the toe on the front wheels between the straights and the corners, but, although Mercedes said the FIA is aware of the system, it does not appear clear if it modifies the suspension while the car is in motion - which is not permitted in F1's regulations - or steering.
Autosport's Technical Editor Jake Boxall-Legge is joined by Technical Consultant Tim Wright, who explains what Mercedes is doing with its system and outlines his fear that ruling the device legal could open the floodgates to misinterpretation.
Wright also gives his feedback on the 2020 challengers after observing them trackside, and asks whether Ferrari is in a bit of trouble during the first week.
Autosport has produced a standalone special magazine to celebrate our 70th birthday. All current print subscribers will receive a copy for free. To order your copy of the 196-page Autosport 70th Anniversary issue, please go to: autosport.com/autosport70th