"He's smiling more; all weekend!" said Boullier. "He's definitely starting the season like he finished the season last year so we can expect him to be strong."
But don't worry, the Finn isn't going to mellow too much anytime soon - which should delight fans who cheered as he famously told his race engineer, "Just leave me alone, I know what I'm doing!" during the Abu Dhabi GP last November, adding: "Yes, yes, yes, I'm doing that all the time. You don't have to remind me every 10 seconds!"
Fortunately his victory there had proven his point, although he did buy everyone T-shirts with the quote emblazoned on the front by way of an implied apology for coming over quite so tetchy. He needed have bothered, though: as long as he's in such winning form, the Lotus team wouldn't want to change any thing about him.
"Kimi's Kimi," laughed Boullier. "I don't think there is anybody on earth who can tell Kimi what to do, so I'm not going to start to be honest!"