Formula One is constantly changing - but this close season the changes are more stark than usual.

The first major regulation changes since 2014 have introduced an air of unpredictability to the 2017 preseason preparations, and centre upon efforts to raise cornering speeds and lower lap times by roughly five seconds.

If the new rules aren't enough to contend with, there are changes to the 2017 race schedule as well an especially prolonged silly season in the drivers market, thanks to the late retirement of champion Nico Rosberg.