Hulkenberg: Force India needs to push hard in F1 season run-in

The German was one of the stars of the Korean Grand Prix - pulling off an audacious overtaking move on Lewis Hamilton and Romain Grosjean - to take a sixth place finish that moves him ahead of team-mate Paul di Resta in the standings.

But although Force India still has its sights on closing down the gap to Sauber in the constructors' championship, Hulkenberg thinks the team is going to need to push extra hard if it is going to carry on scoring well.

"The team is doing a good job, and I feel more comfortable in the job," said Hulkenberg, who is closing in on a deal to move to Sauber next year.

"We have nice rhythm and momentum, which is so important in F1 and it is running well. But two race weekends ago in Singapore I had a more rough weekend, so we need to make sure we get four more weekends like this one.

"And I certainly wouldn't expect it just like that. It will be hard work so we need to stretch ourselves to achieve it every single time now."