Fernando Alonso is confident that McLaren will be able to make substantial progress across the winter period as the outfit bids to close the gap on Mercedes.
McLaren has endured a troublesome reunion with Honda in 2015, amid a lack of energy deployment from the power unit which has limited the squad's prospects this season.
McLaren has scored only 27 points in 2015 and sits a distant ninth in the Constructors' Championship, but Alonso is sure of progress into 2016.
"I think the lack of performance we have in some areas of the car are quite fundamental issues that should have a not too difficult answer, let’s a say, or not too difficult a solution," he explained.
"It’s just we need to copy the direction everyone has apart from us. It’s some of the time that we feel we will recover with not much penalty, because for the others they already have it in their package."
Alonso is nonetheless wary that McLaren's rivals will also make gains prior to the start of the 2016 season.
"So some of the performance gain we expect will come for free but it’s true that all the competitors will work very hard over the winter and they will recover a couple of seconds also, so we need to make an extra, but we are feeling optimistic, we feel confident of next year being very competitive," he said.
"We are realistic at the same time. We understand that in Formula 1 there are no magic things for being one year out of Q1 and the next year fighting for the championship - that’s a very, very optimistic target but we will try our best."