MOTOR SPORT - Five talking points from the Japanese Grand Prix after Lewis Hamilton's victory on Sunday:

HOW MANY FERRARI MECHANICS DOES IT TAKE TO CHANGE A PLUG?

The sight of Ferrari team boss Maurizio Arrivabene looking glumly at the floor after Sebastian Vettel's early retirement told a story in Suzuka. A week after a fuming Ferrari president Sergio Marchione spoke of "organisational changes" for a string of costly mistakes in recent races, it would be little surprise if heads roll at Maranello. The fiasco surrounding Vettel's retirement after just four laps -- caused by a humble spark plug -- sounds like the punchline to a bad joke.

GET A ROOM!

After sharing the podium with Max Verstappen and Daniel Ricciardo in Suzuka, race winner Lewis Hamilton noted the banter between Red Bull pair and smiled: "I've never seen drivers such great friends. Do you guys share a room?" Hamilton's relationships with his own team-mates have largely been more fractious (honourable mentions: Fernando Alonso and Nico Rosberg). Verstappen, who had given Hamilton a late fright in the race, didn't bat an eyelid. "Yeah we actually share a bed," he replied.

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