Following last week’s in-season test session at Silverstone, Hamilton said: “I’m really pumped now for the next race in Germany.
“It’s a constant challenge for the team to try to stay ahead and I hope we can continue to do that there.”
The last Silverstone in-season test programme focussed on car set-up, aero development testing and data collection, as well as engine settings.
Mercedes GP changed the engine on Hamilton’s car after the first run in the morning, meaning team didn’t get as much track time as hoped for.
Later Hamilton said: “It wasn’t an easy day; we had great weather but unfortunately had some problems at the start of the day which meant we lost some track time.
“The guys did a fantastic job to get the car ready again and we were able to put together a few successful runs.
“At the end of the day, we were going to do more important runs but the red flag came out.
“It could have been a lot worse as it could have been raining or we could have even done no laps, but some of the things we’ve tried in the car feel really positive.”