Red Bull boss Christian Horner says he was extremely encouraged by his team's performance in practice on Friday in Singapore.
The Milton Keynes outfit claimed three straight victories at the Marina Bay Street Circuit between 2011 and 2013 and looked good again on the opening day of the meeting this year, with Max Verstappen and Daniel Ricciardo finishing P2 third and fourth respectively.
Singapore is a circuit which suits the characteristics of the RB12 and, despite Mercedes' Nico Rosberg topping the timesheets on Friday, the Silver Arrows have question marks hanging over them after struggling with the conditions 12 months ago to record their worst result of the season.
Horner says he is even more upbeat about his team's chances after P1 and P2, although he admits he still expects both the Mercs and Ferrari to be dangerous.
He told the BBC Sport: "This venue plays to our strengths but Mercedes looked quick and Ferrari were up there as well. It will be a close battle this weekend, particularly tomorrow, but so far so good."