He added: "We will see a very different race in Bahrain, where the weekend presents unique challenges, especially the change in conditions between the sessions.
"FP1 and FP3 take place in the middle of the day when both the air and the track can be very hot; FP2, Qualifying and the Race on the other hand are held in the evening in considerably cooler temperatures.
"These temperature swings make it very tricky to set up the car and find the right configuration for the sessions that really count.
"After the Barcelona test, we felt that we were the challengers. Whatever the Melbourne result says, our mindset hasn't changed since then.
"One race doesn't determine the pecking order for the rest of the season. We need to extract every bit of performance from our package and keep on working hard to improve the car over the weekend to be competitive.
"We've had some great racing in recent years in Bahrain, so I'm looking forward to an exciting weekend."