Video: McLaren and Renault - what happens now?

The announcement came at the latest possible moment, with any further delay potentially compromising McLaren's 2018 car design.

Now, as McLaren faces the task of incorporating its third engine provider in five years, Peter Windsor and Craig Scarborough examine the challenges that creates back at the factory.

Also in this clip from Motorsport.tv's weekly programme The Flying Lap, we examine Honda's prospects with Toro Rosso, and what could be going on engine-wise in Red Bull's future.