Adrian Sutil was left disappointed after a race that had promised so much ended with both Force India drivers retiring in the Malaysian Grand Prix.
A problem with wheel guns on both Sutil's and Paul di Resta's cars during pit stops resulted in major delays.
"It's a shame this happened here, we had a very quick car today and I felt very comfortable," said Sutil.
"We have to stay positive, keep our heads up and remember that there are plenty of races left."
Sutil's team-mate Paul di Resta spoke of a "missed opportunity" after coming away from Sepang with no points, retiring after 24 laps, seemingly as a result of the wheel gun issue.
"It's frustrating to come away with nothing given how competitive we have looked all weekend," said the Scot.
"As a precaution the team chose to retire the car. The good news is that we have the performance in the car, but this is definitely a missed opportunity because we had the potential to score a lot of points today."
Lotus driver Kimi Raikkonen kept up his run of consecutive points finishes but fell to second in the drivers' championship, behind eventual race winner and reigning world champion Sebastian Vettel.
"It was a tough race and I lost part of my front wing at the start which didn't help, but at least we scored a few points which is better than coming away with nothing.
"If we can get the car back to how it was in Australia then I'm sure we'll be at the front again."
Toro Rosso driver Jean-Eric Vergne managed to finish in the points in 10th despite a pit lane collision with Caterham driver Charles Pic which led to stewards fining the team for a dangerous release from a pit stop.
"It's good to finish in the points, but it's a shame that a mistake in the pits cost us so much, as I could have done something better," said Vergne.
"There is certainly a lot of room for improvement, as both these two races have been missed opportunities."
Sauber driver Nico Hulkenberg, driving in his first F1 race of the season after failing to start in Australia, said finishing eighth was "well deserved" after getting stuck behind traffic for the majority of the 56-lap race.
"I feel quite well rewarded going home with four points after my first race of the season in a new team and with a new car," he said.
"I think we started well but after that we were affected by tyre wear but I think the potential is there."
Hulkenberg's team-mate, Esteban Gutierrez finished just outside the points in 12th and despite team principal Monisha Kaltenborn being "happy about the result", Gutierrez was philosophical about his race.
The Mexican said: "Ideally we would have liked to finish in the points. I did my best.
"Overall the weekend is a step forward and we need to keep working and put everything together to achieve points."
Williams driver Valtteri Bottas missed out on his first F1 points finish by 1.486 seconds, prompting his technical director Mike Coughlan to say he "drove a great race".
"Once the track started to dry, I was able to start overtaking a few cars and I had a good, clean race," said Bottas, who finished 11th.
"The team did a great job with the strategy and with a few more laps I could have started attacking for a championship point.
"We maximised what we had but I trust in the team that we can now continue working together to improve."