Lewis Hamilton wants Mercedes to understand why they haven't won every race despite a largely dominant start to 2019.

The Brackley-based outfit has only been beaten twice so far this season, with the world champion winning 75% of the Grand Prix's to date.

However, it is the occasional failures like in Austria and Germany as well as other factors which Hamilton looks at to keep pushing the team forward.

"I look at those races and 8 out of 12, there's still some missing," he was quoted by GPFans.

"So how did we miss those? How were we not perfect on those weekends?

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"We've also had races where we were quite fortunate, Ferrari was quicker but through sometimes team error and sometimes driver error, it's put them in the position of not winning.

"Like Baku or Bahrain, where they had the car failure and otherwise would have won. It just shows you how on the edge we all are, and you can't take anything for granted."

In recent races, there have been signs of progress from their rivals, particularly at Red Bull with Max Verstappen outscoring Hamilton since Austria.

And it is holding off that growing threat which the Mercedes driver sees as the main goal on the run to Abu Dhabi.

"This second half of the season could be much, much harder in the sense we'll continue to have this battle,” he added.

"We've obviously got a package, we just have to continue to arrive and deliver like we have. I can tell you we're not perfect, by far. We've still got areas we will continue to improve.

“You've still got to arrive and deliver, week-in week-out.

"Ferrari has had a good package, obviously come with a certain [aerodynamic] philosophy this year that doesn't work everywhere.

"Red Bull, I don't know what changes they've done to the car, but they seem to have really been able to turn it around and the engine's made a big step for them which is great."