Jenson Button blamed the Caterham drivers for costing him fifth place in the German Grand Prix.
The McLaren driver has held up by the pair, who were battling with Max Chilton for 17th place, in the final laps of the race.
The time Button lost allowed Lewis Hamilton to catch and pass him on the last lap.
“Really hoping to get fifth there but the Caterhams destroyed that possibility,” said Button after the race.
“They’re obviously racing for position but when you get blue flags, you get blue flags and you move over. But every time I tried to put it up the inside they just turned in.
“It’s a shame when it costs you so much and those points could be important to us in the championship.”
Both McLaren drivers lost positions on the last lap as Sergio Perez was overtaken for seventh place by Mark Webber. However they scored points for the first time in three races for McLaren.
Team principal Martin Whitmarsh praised their efforts: “Both drivers did a fantastic job this afternoon – they managed the limits of the tire, pushed aggressively when it was needed and were always able to maximize the pace of the car.
“It’s just a pity that they each lost position on the final lap.”
Audi bid farewell to its iconic head of motorsport, Dr. Wolfgang Ullrich, at its end-of-season ‘Race Night’ event in Germany on Friday upon his retirement.
Ullrich took over the reins as Audi’s head of motorsport in 1993 and stayed in the role for 23 years, overseeing its arrival in the prototype class of sports car racing and domination of the 24 Hours of Le Mans.
Ullrich stepped down from the position at the end of 2016, handing the reins over to ex-Audi DTM chief Dieter Gass, and attended his final racing event with the German marque at its first works Formula E outing in Hong Kong earlier this month.
Ullrich was honored at the Race Night event on Friday and thanked for his efforts in developing Audi into a force within global motorsport.
“In 566 factory-backed commitments during this period he celebrated 209 victories, 13 of them in the 24 Hours of Le Mans, eleven in the 12-hour race at Sebring and nine in the ‘Petit Le Mans’ at Road Atlanta,” a piece on Ullrich’s tenure for Audi’s website reads.
“31 driver titles in super touring car racing, in the DTM and in the sports prototype category are credited to him. 57 campaigners were Audi factory drivers during Wolfgang Ullrich’s era and he was responsible for 18 new developments of racing cars – an impressive tally.”