Sebastian Vettel says Ferrari tried "some things" during testing at the Hungaroring on Wednesday that will be used at the forthcoming Belgian GP.
The German was in action for half a day of running before handing the SF70H over to his team-mate, Kimi Raikkonen.
But despite covering just 40 laps in the morning, Vettel's 1:17.X stood as the time to beat through to the chequered flag.
"We tried some things," he said.
"You cannot turn the world upside down but in testing you're a bit more brave in what you want to try, so it was important to get a feel for the car.
"The feeling was very good."
Asked if he had been running parts that will be used at the upcoming races following the summer break, he replied: "Next race [Spa], Monza not really because it's very different, and for the future of the car and where we want to go.
"Small things in the background, nothing you can see."
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