Mercedes have announced that technical director James Allison has signed a "long-term" extension to remain in his role at the team.
Ford CEO Jim Farley says the manufacturer is coming back to Formula 1 for "pure tech transfer", like when its engines dominated in the seventies.
Formula 1's drive for more street circuits looks likely to continue but Formula E is going in the opposite direction. Why the different trends?
In the round-up: F1 "remains an interesting racing series" for Porsche • BMW confirms WEC squads • Williams and Haas announce new juniors