Kubica completes "successful" test with Williams

Kubica completes'successful Williams test

Kubica completes'successful Williams test

Earlier this year, Robert Kubica did some tests with the Renault Formula 1 team in a bid to return to Formula 1.

Kubica's F1 career had appeared to be over when he sustained serious arm and hand injuries in a rallying accident in February 2011, but his performance in a test for Renault at Valencia in June has placed him on the comeback trail.

Kubica is now expected to test the auto at the Hungaroring next week, where Williams will also run reserve driver Paul Di Resta.

"If Robert had not have had his accident, then I think by now he would have been world champion anyway", Ecclestone told Autosport.

'I think he can come back even stronger than before. "Mentally, I think probably he will be more aggressive: so I can only see good, good things for him".

Kubica has generated huge publicity since he became a candidate for an F1 seat, with his mid-season test for Renault one of the biggest stories and social media events of the season.

That test will also be attended by Paul di Resta, another contender to replace Felipe Massa on the team next year.

'If he does what I think he is going to be do - be even better than before - then people will get behind him, ' said Ecclestone.

"He will be good to have for Formula 1".

'Maybe they are going to lose Felipe Massa at the end of the year, I should think he has probably had enough, and if Robert is on board then he might wake up a lot of people there.

All a spokesman for the British team would say about the Polish driver's run in a 2014 vehicle was that it had been deemed a success. "Nobody knows. So it would be nice to get a guy who should be quick in the vehicle to find out".