After a fairly uneventful first practice which saw Red Bull ace Max Verstappen top the timesheets, Vettel headed out for his second run at the Autodromo Jose Carlos Pace in Sao Paulo for FP2 this afternoon.
However, it quickly became apparent that he had a rogue object his cockpit which provided one of the best radio messages of the season.
“There is something loose between my legs, apart from the obvious, something flying around my feet,” the Ferrari man said over the radio.
“OK copy,” his engineer laughed.
“It’s around my feet,” Vettel added. “I’d be proud if it was what you think it is but it’s not…”
And fans were quick to take to Twitter after hearing Vettel’s hilarious innuendo.
“Don’t call it a cockpit for nothing,” one fan wrote.
Another said: “Love Sebs sense of humour.”
“Radio moment of 2018,” a third fan wrote.
Red Bull ace Verstappen was fastest in FP1 ahead of Vettel.
The Dutchman lapped the anti-clockwise Interlagos circuit with a best time of one minute 09.011 seconds.
Vettel meanwhile as second with a time of 1:09.060.
Mercedes’ Lewis Hamilton, his fifth Formula One championship won in Mexico City last month and reflected in the five stars on his helmet, was third on an overcast morning.
The top three, all on super-soft tyres, were separated by less than a tenth of a second, however.
Sunday’s main focus is the battle for the constructors’ championship, with Mercedes poised to win for the fifth year in a row and with one race to spare providing Ferrari do not outscore them by 13 points.