Lewis Hamilton admits he 'doesn't know which way it is going to go' ahead of the Bahrain Grand Prix as Ferrari continues to encroach on Mercedes' dominance.

The Englishman did his bit to secure a fourth straight pole position for the team to maintain his 100 per cent qualifying record in 2015, though the presence of Sebastian Vettel alongside him on the front row demonstrates another step forward by Ferrari.

Indeed, though Mercedes has consistently aired its concern over Ferrari's race pace, this is the closest it has been over a single lap in qualifying, while long run lap tomes on Friday show Vettel arguably has the better form.

Related Articles

Nonetheless, Hamilton remains relatively relaxed about his Bahrain expectations, saying the pre-race predictions of Malaysia and China didn't quite play out as expected.

"The tyres are lasting fine, it just pure pace and getting more from the tyres. In Malaysia we thought we were going to be ahead and in China we thought they were going to be stronger in the race. Tomorrow it appears they are going to be strong but I don't know which way it is going to go.

"The biggest rival is always the guy that is closest to you, even more so with Sebastian because it appears Ferrari is quicker on its long runs, so we will have our work cut out to stay ahead and make the tyres go the distance.

"I don't know how much he will be on my tail. We might get to the first corner and we might be able to control it from then, but like in Malaysia, every time I was having to up the pace and he had an answer to every time I did