Manor rookie Pascal Wehrlein says that the squad is now working well as a team, as it bids to move further up the Formula 1 grid.
Manor finished significantly adrift of the pack in 2015 but gains made over the winter has enabled Wehrlein to fight among more established teams, finishing a high of 13th in Bahrain.
"Fundamentally we have a good package and every race we’re making progress, but it’s still very early days," said Wehrlein.
"There’s plenty we can do in every area to improve and find more performance.
"I’m learning a huge amount with each new race and we’re really starting to work well together as a team, so it’s a combination of factors that will help push us forward. It’s exciting to see how we can build from here."
Wehrlein will start his fourth Grand Prix in Russia this weekend, having never driven at the Sochi Autodrom before.
"This one is quite fast and having the Olympic Park in the middle of it is something a bit different," he said.
"For us, hopefully we have been able to continue improving our set-up so we can unlock a little more of the car’s potential. There’s still plenty of work to do there."
Manor also has Alexander Rossi present as reserve driver, which he is conducting alongside his duties in the IndyCar Series in 2016.