|Hungarian Grand Prix on the BBC|
|Dates: 28-30 July Venue: Hungaroring|
|Coverage: Practice on BBC Radio 5 live sports extra (online only), and qualifying and race on BBC Radio 5 live. Live text commentary, leaderboard and imagery on BBC Sport website and app.|
Sauber have signed a "multi-year" engine deal with Ferrari from 2018.
The move, a day after Sauber cancelled their planned switch to Honda engines next year, is a continuation of a relationship that started in 2010.
Sources say the deal is likely to see Formula 2 frontrunner Charles Leclerc, a Ferrari protege, promoted to Formula 1 with Sauber in 2018.
The deal is for latest-spec engines the Ferrari works team will use - Sauber are using year-old engines this season.
The team this year run Swede Marcus Ericsson and German Pascal Wehrlein. Ericsson's backers are part-owners of the team but Wehrlein is funded by Mercedes.
Team principal Frederic Vasseur said the partnership would "allow us to move forward swiftly and efficiently".