Mercedes boss Toto Wolff has often described his team's relationship with Formula 1 title rival Ferrari as that of 'frenemies': battling as hard as possible on track while enjoying cordial relations off it.
That's probably a fair assessment, for despite a few tetchy moments - such as last year's oil-burn controversy, or Sebastian Vettel driving into Lewis Hamilton in Baku - it has been rare for the Silver Arrows and the Prancing Horse to allow competitive circumstances to sour their rapport.
"For me the analogy is rugby," said Wolff last season. "During the race Ferrari are our enemies and I wouldn't take any prisoners, but we must be capable, once the race is over, to have a beer like rugby players and acknowledge we are all warriors and fierce competitors out there."