Daniel Ricciardo's Renault team have lodged an official protest for the second race in a row at the Hungarian Grand Prix against Formula One rivals Racing Point, questioning the legality of their Mercedes-lookalike car.
The French manufacturer team first protested after the Styrian Grand Prix in Austria on July 12, with stewards investigating.
Repeat protests had been expected, with Renault allowed to continue to lodge them at all races until the matter is resolved.
Stewards said Renault were protesting the same brake ducts as previously.
Racing Point ended Sunday's race at the Hungaroring with both their cars in the points, Canadian Lance Stroll finishing fourth and Mexican Sergio Perez seventh.
Australian driver Ricciardo was eighth in the race, banking four points while teammate Esteban Ocon was 14th.
"It was quite a busy race and, overall, I'm happy with how it went," said Ricciardo, who started 11th on the grid.
"I gave everything I could and I felt we got the most from it today. Our start was good and everyone around us went for slicks quite early on.
"We showed good pace on the Medium and almost caught the top six at the end. Eighth was all we could achieve in the end, though.
"We've had eighth in every race so far. It's not bad, but I do feel we have the speed for more from the first three races. We're not far from top six finishes, it's coming, and we know bigger points are around the corner."
Racing Point are now fourth in the constructors' championship, level with third-placed McLaren on 40 points. Renault are sixth on 12.