Neither Force India driver finished the Malaysian Grand Prix after a problem with the wheel nuts during the pit stop.
"An early end to a race that promised so much for us," said Sutil.
"Both cars had the same problem with the wheel nuts and it cost us a lot of time in the pits. We’re not sure exactly what happened yet so the team stopped the cars to make sure we understand the issue. It’s a shame that this happened here because we had a very quick car today and I felt very comfortable as the track dried out. We have to stay positive, keep our heads up and remember that there are plenty of races left where we can make up for the disappointment of today."
"It’s frustrating to come away with nothing given how competitive we have looked all weekend," added Paul di Resta.
"We saw an issue at Adrian’s first pit stop when I was sat behind him, which cost me about 15 seconds, and then I had the same issue with the wheel nut at my second pit stop. 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. We will go away, take this on the chin, and come back fighting in China."