FP2 saw a huge shunt from Carlos Sainz which finished his session after 20 minutes. Max Verstappen was late to start after a gear box change but managed just 1 lap before retiring the Red Bull. Yet George Russell topped the session from the Championship leader with his team mate Hamilton 0.25s off the pace.
The real excitement for qualifying tomorrow is the state of the midfield. Perez was 3rd and Fernando Alonso was ‘the best of the rest’ beating last time out podium winner Lando Norris to P5.
Alpha Tauri have had an awful start to the season, managed a P7 with Pierre Gasley and Chinese driver Zho made P9 for Alfa Romeo as team mate Bottas failed to make the session.
The number of spins on this new Miami circuit was unprecedented for many a race weekend, which bodes well for the race on Sunday.
Later in the session it appeared that Mercedes changed their setup which introduced more porpoising on the car when using the medium tyre.
The track clearly evolved and most drivers found a second from their FP1 times, but Williams hardly made an impression despite the extra running.
This was easily the best practice session for Mercedes in P1 and P4, though two of the top drivers in Sainz and Verstappen had little running during the session.