Lewis Hamilton hailed one of the most special laps of his career after claiming pole for the Azerbaijan GP in a dramatic qualifying hour.
Lewis Hamilton banished his Baku qualifying demons of 12 months ago to claim Azerbaijan GP pole, but Vettel was only fourth.
Mercedes have said they would open discussions with McLaren about a 2018 engine deal if the Woking team formally drop Honda.
Mercedes will hand their British teenager George Russell his full F1 test debut in Hungary at the start of August.
Valtteri Bottas was fastest in Practice Three for the Azerbaijan GP as Sebastian Vettel and Max Verstappen suffered mechanical problems.
Lewis Hamilton beats Mercedes team-mate Valtteri Bottas to pole in Baku as Sebastian Vettel qualifies in fourth for Ferrari.
Sebastian Vettel and Lewis Hamilton braced for practice pacesetters Red Bull to gatecrash Mercedes and Ferrari's fight in Baku.
Palmer and Verstappen crashed out, while numerous drivers ran off the road, as Baku's City Circuit bared its teeth on Friday.
Max Verstappen was fastest once again in Practice Two for the Azerbaijan GP before crashing, but Lewis Hamilton was only 10th.
Christian Horner has ruled out Daniel Ricciardo or Max Verstappen leaving Red Bull, meaning Fernando Alonso won't be joining.
Red Bull's Max Verstappen and Daniel Ricciardo unexpectedly led the way in Practice One in Baku, while Sergio Perez crashed out.
Sky F1's Craig Slater is fully embracing the spirit of Azerbaijan ahead of this weekend's grand prix in Baku.
Watch a side-by-side comparison of Lewis Hamilton and Valtteri Bottas' qualifying laps as the Briton left it late to claim pole in Baku.
Lewis Hamilton has said he is "not thinking" about a timeframe for when he will retire from Formula 1.
Sebastian Vettel believes Ferrari deserves more credit than Mercedes for the tight battle at the front of Formula 1 this season.
Lewis Hamilton says Valtteri Bottas has "earned his place" at Mercedes and will only become stronger.
Pascal Wehrlein has pointedly refused to defuse claims that Marcus Ericsson is given preferential treatment at Sauber.
Romain Grosjean believes he is in a good position to take a seat at Ferrari next year should one become available.
Formula 1 returns for its second race in Baku, and Sky F1's Ted Kravitz has the lowdown on a trip to the city for the Azerbaijan GP.
Fernando Alonso does not intend to take a "gamble" on where he drives in 2018, while hinting some unexpected seats may become open.