Friday practice – selected team and driver quotes

Lewis Hamilton on why poor grip out on track made life difficult for all the teams; Toro Rosso duo Daniil Kvyat and Jean-Eric Vergne on their contrasting fortunes; and Nico Rosberg on why Mercedes’ pace comes as a surprise despite their proven advantage over the rest of the field.

The drivers and senior team personnel report back after a error-strewn opening day at the Hungaroring