Romain Grosjean thinks that an issue with his Lotus E21 left him trailing in the Australian Grand Prix.
While team mate Kimi Raikkonen finished on top of the podium, Grosjean struggled to tenth place.
"Something felt wrong with my car, so I have to sit down with the team and analyse where the issue came from," he said.
"It felt so good all weekend until the race itself, but in the end the race was long and quite difficult for me. We know that Albert Park can be a tricky circuit and the weather has certainly not helped today."
"It’s been a great weekend for the team with Kimi’s win so it’s clear there’s pace in the car. Let’s hope I can unlock that pace too next weekend in Sepang."