Cosworth's Mark Gallagher says the company is delighted with its performance since returning to the F1 grid this season after all eight Cosworth-powered cars took the chequered flag in Hungary.

The Hungaroring marked the first time this season that all three new teams had secured two-car finishes, which in turn saw Cosworth secure a 100 per cent finish after Williams duo Nico Hulkenberg and Rubens Barrichello brought their cars home inside the top ten.

Hungary also saw Cosworth continue its problem free run, with no engine failures directly linked to the units themselves having been recorded after twelve races.

"I strongly believe we have done a sensational job in providing a third of the grid with competitive, efficient and reliable engines this season," Gallagher said. "Adding the distances achieved in Hungary, the total cumulative mileage for Cosworth CA2010 engine in 12 race weekends is just over 58,000km across four teams - without a single engine failure. To me, reliability is a central pillar of any racing programme, and particularly on engines considering the 8-engine-per-driver rule. Unfortunately good reliability is a non-story and engines only tend to get noticed when there are clouds of smoke and pistons on the track, so I am pleased to say we have not suffered any of the catastrophic failures that have been seen elsewhere.

"We have seen two engines cook themselves as a result of chassis-side failures of the cooling system resulting in water loss, once with HRT in Bahrain and once with Lotus in Monaco. They were not engine failures. Early in the season we did see some issues with power degradation in the third race weekend, but we immediately began to address this issue and with all of the other work that has been done to optimise the performance of the engine we are very satisfied with how things have gone. Considering our rivals had a three year head start, actually it's been remarkable."

Gallagher added that Cosworth was pleased with the performance shown by the CA2010, especially after Barrichello set the third quickest lap in Hungary.

"The Cosworth CA2010 is a very competitive engine and real credit to everyone involved in its design, development, manufacture and operation," he said. "The results that AT&T Williams have been scoring since Valencia, with consistent Q3 performances and targeting a move up the Constructors' table, illustrates that. When Rubens Barrichello overtook Michael Schumacher, he went on to set the third fastest lap of the race with a 1m22.811 - 0.16s slower than the best of race winner Mark Webber.

"I realise tyres played a key part but it's nice to see that he was also third quickest in the speed trap at 291.6kmh and fourth fastest on the finish line. I'd like to hope people understand the Cosworth engine plays its part in that performance. You need power to make the most of the grip."