"It's frustrating. I'll let Cyril [Abiteboul, Renault's managing director] come up with the excuses afterwards".
Red Bull is switching to Honda power for next season, in what will effectively become a fully-fledged factory partnership.
"It could've gone wrong for all of us", he said.
Red Bull boss Christian Horner said Verstappen's retirement came as "no surprise" and accused Renault of providing his team with a below-par engine. I felt good with the vehicle and had a strong start but the race was then over within six laps.
"I think from both sides, Danny and me - honestly, it's just at all now how it should be", he told reporters after the race. I don't care if this engine blows.
Chelsea FC want Man United star to replace Eden Hazard
United's next stop is in California, where they will play San Jose Earthquakes on Sunday. The 22-year-old forward missed out on Didier Deschamps World Cup winning squad.
Speaking to Sky, Horner said: "I am not going to get drawn into saying too much, but we pay multi millions of pounds for these engines, for a first class product, a state of the art product, and you can see it is quite clearly some way below that".
"Stroll spun in front of me, I had to abort that lap and the following lap was too wet for the intermediate tyre".
Despite leading the way in free practice, Daniel Ricciardo's race was hampered from the very start as rain fell during Saturday's qualifying session, catching the Australian out as he failed to get out of Q2, meaning he started 12th at the notoriously tight Hungaroring. For sure the first week I'm not really enjoying it because of the end of your last race, but that's how it is.
Red Bull and Renault combined for four consecutive drivers' and constructors' championships between 2010 and 2013, but the relationship has deteriorated since.
In Hungary, the Dutchman was the latest to suffer due to a reliability problem with his Renault power unit.
Ricciardo was third in a blazing hot afternoon session, behind 20-year-old Dutch team mate Max Verstappen, who was 0.074 slower than Vettel. "The normal strategy is to change everything you can".