BBC Sport - Formula 1: Palmer quick in testing, refuelling to return, and Audi in F1?

F1 news: Refuelling to return in 2017

BBC F1 pit-lane reporter Tom Clarkson takes a look at some of the biggest news stories unfolding after the Spanish Grand Prix.

Some of the news this week includes the F1 strategy group's discussions regarding a return to in-race refuelling and a ban on using a fifth power-unit, while elsewhere Lewis Hamilton's contract saga continues and there is talk of Michelin potentially returning to F1.

The next race on the calendar takes place on 24 May in Monaco, with live radio and online coverage, and highlights on BBC TV.

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