Spanish GP: Vettel unsure why Ferrari lost pace

Barcelona -Sebastian Vettel was left perplexed by Ferrari's loss of performance on Saturday when they slipped back to the third row of the grid for the 2016 Spanish Grand Prix.

Ferrari had looked likely to mount a bid for the front row after strong showings in free practice, but that pace appeared to evaporate in qualifying.

Vettel, who was quickest in first free practice on Friday, wound up sixth behind his Ferrari team mate Kimi Raikkonen.

'We're disappointed'

Defending champion Lewis Hamilton grabbed his first pole position in three races ahead of his Mercedes team mate Nico Rosberg.

As it happened: 2016 Spanish GP - Qualifying

Four-time world champion Vette said: "We're disappointed as a team today because we didn't deliver what we can. We need to have a look and understand. We can't change it now.

"I think the car should be a lot quicker tomorrow (Sunday). I don't know what happened this afternoon, but tomorrow is another day. We know that the car is strong. We know that the car can be very strong and we just need to make sure that we get it in the right groove."

Rosberg said he was surprised at Ferrari's form. "We are not supposed to be so far ahead, but we are surprised at how quick Red Bull are... It is all changing quite a bit, but the only constant is us...

"That is impressive to see. It's a great job from the team. On every track, we keep the car working perfectly and that is fantastic."