Alpine's hopes of scoring points this weekend at Marina Bay were blurred: an engine failure that involved both cars ended the race for Alonso and Ocon.
The two DNFs complicate the fight with McLaren for fourth in the constructors' championship, that at the moment sees the papaya team four points ahead of Alpine because of the Woking-based team's double top 5 on Sunday.
Alonso, who was sixth in the early stages before the retirement, surely didn’t seem happy about the car performance and the loss of points this season.
"I think it was around minus 50 [points], so now we have another eight," he explained. "So it's minus 58 points or minus 60 in a year, which is really unacceptable on my car.
"If you put me 60 points more in the standings, and you reduce 10 or something to the others, because you would take points from those as well, my championship will look much better and close even to Mercedes.
"So that is probably more accurate of the performance that we are putting this year, which I'm very proud of. Even today, the top five or top six we were fighting for. But the standings doesn't translate to performance.”
The Spaniard does not think that the factor that caused the issue may be due to the age of the power unit, which in his car has not yet been replaced, pointing out that his teammate Ocon had a new one and his race still ended due to an engine failure.
"I think the engine mileage it was okay," he said. "Even I think Esteban had a problem and has a newer engine. So I don't think that this is down to that.
"But I will have to put a new engine in the next few races for sure. We'll see when. So yeah, [that's] more points that we will lose.”
However, Esteban Ocon thinks the outfit did the right thing in chasing performance with its A522 car.
"This weekend hasn't been a good one for us for reliability, because we had a DNF with both cars, but I think with new regulations, and such important regulations, we needed to push and we needed to make the car work.
"We can rely on a quick car for next week again. So that's what I'm looking at, more than the rest.”
Ocon qualified in 17th but made a good start on Sunday, getting up to 15th on the first lap. He eventually managed to get in 13th but on Lap 27 his race was over because of his car stopping on track with smoke.
“We probably had an engine issue today. I saw some white smoke coming down the back and I could hear something in that same lap going louder and louder. The car hasn't returned yet, so we don’t know exactly what the issue is but yeah, it’s a frustrating day for us.
Asked whether his and Alonso's issues might be related, Ocon said: “I don’t know if the issues are linked or not. So, as I said we will investigate, understand what happened. Its racing, it sometimes happens.”
Despite the problems, the French driver is still confident about his car performance and ready for next weekend: “The good thing is that we have a competitive car, we have a car we can count on next week. I look forward to Suzuka, it’s one of my favourite tracks, so I can’t wait to be there.”