All options are on the table in order to return McLaren to the front of the grid in 2018, according to the team's executive director Zak Brown.
After six rounds of the 2017 season, McLaren sits rock bottom in the constructors' championship with zero points. For a third year running, the performance and reliability of the car's Honda power unit has been the team's biggest weakness and rumours of a switch to Mercedes power resurfaced as recently as the Spanish Grand Prix.
The team's lack of competitiveness this year led to a deal for star driver Fernando Alonso to skip the Monaco Grand Prix and take part in the Indy 500, but with that adventure also ending with a Honda engine failure, the reality of the team's issues in Formula One are back at the fore.