Hamilton about the winter tests: "It hasn't been perfect"

Lewis Hamilton reports that Mercedes are fighting many problems at the conclusion of Formula 1 Winter Testing in Barcelona. The six-time F1 world champion admitted that he is concerned by the reliability issues which has plagued the Mercedes engine this week.

The problems, which also hit Williams, have given those in Brackley and important task ahead of the Australian Grand Prix. The team must significantly improve the reliability of the new engine for the season opener in Melbourne in two weeks.

"I think we have had a good winter test. But it hasn't been perfect. We have discovered that there are still enough problems that we need to resolve. I don't know how long we'll be working on it before all this has been remedied, but it's never a bad thing to discover things like this during testing," Hamilton said.

"Furthermore, I think our performance has been pretty good in terms of the number of laps we have driven, apart from yesterday," says Hamilton. "I have no idea where we stand compared to others, the team will probably have a better idea of ​​that."