Fernando Alonso will give McLaren's 2017 car its track debut later this month.
It has been a period of change for the Honda-powered team, since the forced departure of McLaren supremo Ron Dennis.
The traditional "MP4" will be removed from the official name of the 2017 chassis, and there are rumours that McLaren will have an orange livery this year.
Spanish radio station Cadena Cope said that Alonso will be at the wheel of the MCL32 when official testing begins in Barcelona on February 27.
Yet new chief Zak Brown is playing down expectations, telling Road and Track that although team members have been "frustrated" with a lack of recent results, "We are not going to be winning any races" in 2017.
However, team boss Eric Boullier has played down the impact that many of the changes will have on McLaren, such as the loss of team manager David Redding to Williams.
"I think you have to realise that Formula 1 is all about change," said the Frenchman, who revealed a wider internal reshuffle.
Asked if he thought about looking outside of McLaren to fill the void instead, Boullier insisted: "No, not even for a second."
As for the 2017 car that will debut in Alonso's hands on February 27, Boullier said that it boasts some "exciting changes" compared to last year.
