By Suhas BhatFollow @@suhasrbhat
Reporting from the Sepang International Circuit
The two drivers were impressive in Saturday's qualifying session with Sutil also topping the timesheets in Q1. The German also achieved an impressive seventh-place finish in the Australian Grand Prix while also maintaining the lead at several points in the race despite stiff competition from the likes of Sebastian Vettel and Lewis Hamilton.
Any hopes of a repeat performance were dashed, however, as the engineers were stuck in a quandary when trying to replace the tyres during a routine pit-stop in lap 22 for Di Resta and lap 27 for Sutil.
Ultimately, they had to give it up and tow the cars back into the garage but the 30-year-old German looked extremely reluctant to bring his race to a premature end.
"In Q1 and Q2, our car was one of the fastest but that's racing, you know. It's up and down and we have to deal with it," he told FOX Sports later in the evening.
"It could have been better but both cars had problems during pit-stops. We tried our best but we had to give up for safety reasons.
"It was a wheel-nut problem. We couldn't put it on the car and it was loose the whole time. We had to end the race because we didn't know if the part could hold the tyres properly.
"But I have to stay positive, you know. Melbourne was a good race and here, we could have probably done even better.
"Our raw pace was very good and out qualifying performance was also quite strong. We lost a big chance to score some points for the midfield battle but we can do better in China.
"Don't lose hope, that's the main message."
His Scottish team-mate was even more emphatic in his assessment of the VJM06. He believes it is a markedly improved outfit to last year's challenger and can even help them to score regular points finishes as well as a podium now and then.
"I don't need to say too much, really. It was a wheel-nut issue that's obviously not shown up before all weekend," he said.
"We were making good progress, closing in on [Sergio] Perez at a second a lap with just six seconds separating us.
"I think we were the second or third quickest on the track as well. Probably looking at seventh place without the first pit-stop issue as well.
"We had a quicker car than Raikkonen as well and therefore it is a bit frustrating, given how quick we were this weekend.
"Wheel-nuts can be fixed but race performances, especially if you have to retire, cannot.
"The next two weeks can't come quick enough. I don't really want a break but there are some positives to dwell on.
"I'd like to think we can achieve, hopefully, with some more knowledge on our car some decent positions and quicker times.
"China needs a different philosophy but we had a good car there two years ago.
"Bahrain was possibly one of the strong grand prixs we had last year and we're expecting things to be similar there this time around as well."
The duo have secured ten points for the Silverstone marque and the team currently lie in fifth place, one place ahead of McLaren, in the constructors' standings.