McLaren-Honda have unveiled their 2017 Formula 1 car in a brand new orange, black and white livery.
The new colour scheme, a change from dark grey, is a visible manifestation of a new era at McLaren following the departure of former boss Ron Dennis.
The orange reflects McLaren's historic original racing colour, while the white is engine partner Honda's corporate branding.
New executive director Zak Brown said the aim was "to get back to winning".
McLaren have not won a race since 2012 and have had a disappointing time since the start of their new link-up with Honda in 2015. Last year they improved to finish sixth overall.
They have a new driver this year, with Belgian rookie Stoffel Vandoorne joining two-time champion Fernando Alonso.
"We're going to get there," Brown added. "The team is highly frustrated we're not wining but we have a new package and it takes time.
"Last year there was forward progress and that's what we need to see this year.
"With Fernando and Stoffel, I wouldn't want a different driver line-up. We have everything we need."
The new car features many of the design tweaks seen on other cars following the new regulations aimed at making the cars faster, more demanding and more dramatic.
There is a 'shark fin' engine cover and complicated aerodynamic detailing around the nose and in front of the bodywork on either side of the cockpit.
Two-time champion Alonso, who is entering his 16th season, said: "It is an important year for us. It has been a difficult 2015 and 2016 and we have high hopes this year we will come back to where we belong.
"We need to not promise anything to the fans or ourselves, just work hard do good winter testing with a lot of mileage. But if we are here today it is because we believe we can win.
"With the new regulations, the car looks spectacular and I am looking forward to it. They become sexy when they are fast, so we will see. But they are the best-looking cars I have driven.
"There are some hopes the new regulations will improve the show and make the excitement a little bit bigger but we need to wait and see. After next week in Barcelona we will have some answers and after the two first races some more."
Vandoorne said he was looking forward to racing alongside Alonso and hopeful he could compete with the 35-year-old Spaniard.
Honda F1 chief Yusuka Hasegawa said the engine had been modified - made lighter, with more power and a lower centre of gravity.
"We are not making any promises but our aim is to make progress and catch up the front-runners," he said.