Senna confident Renault will return to 'normal' form at Suzuka

Both Senna and team-mate Vitaly Petrov struggled during the Marina Bay event last week, with Senna finishing in 15th and Petrov in 17th.

The Brazilian, however, believes Renault can expect to be back on form thanks to nature of the Suzuka circuit.

"We should be back to our normal levels of performance here, like Spa and Monza," Senna told reporters at Suzuka.

"Hopefully more like Monza. But yeah, Singapore was not the greatest, but now we are looking forward to this one."

The Brazilian admitted Renault's poor form in Singapore came a surprise for the team.

"I don't think anyone expected to be so uncompetitive as we were in Singapore, but it's in the past now. So we look forward to this one," he added.

"We have a bit of an upgrade for the car for this race and hopefully we will get a bit more out of the car as well."

Senna also said he is getting more comfortable working with the car with every race that goes by, having returned to racing at the Hungarian Grand Prix.

"I think I'm getting everything together now. I think I have a good idea of the direction that I can take with the car to make it suit my driving style."