Kevin Magnussen was left disappointed after yesterdays qualifying session after he failed to make it out of Q1.
Magnussen, who will start the US Grand Prix from seventeenth was confused as he insists the car felt good in practice and no set up changes were made.
"We didn’t qualify where we expected today so that’s pretty frustrating,” said Magnussen. “Yesterday the car felt pretty good so we didn’t make any set-up changes, yet the car felt very different out on track.
“Where we were strong yesterday we weren’t today so we definitely need to work out what’s going on. Hopefully we have decent pace in the race as it’s a circuit where you can overtake here, it’s not impossible to still get a reasonable result.”
Bahrain International Circuit - Winter testing