Sauber's Sergio Perez arrived at Korea in good spirits after what he described was a 'very special race' at Suzuka last weekend.
It marked one of the best weekends of the year for the Mexican, who came through the field from 17th to take a points finish in eighth.
"Well, it was a very special race for me," he said during Thursday's press conference in Korea. "It was quite a good race, very good race, starting on P17. We had a hydraulic problem. We thought the race was lost and our pace was very strong in the race.
"We managed very good strategy and it was very good to score some good points and hopefully we will keep up the momentum in the last races."
Perez, however, faces a sterner test this weekend having never driven the Yeognam Circuit but still maintains a positive outlook for the weekend.
"I went for a walk this morning and, of course, it looks very dirty," he said. "The track, the layout, looks very promising. I have driven the circuit on the simulator already and I am looking forward to doing a good job this weekend. It is a very challenging circuit."
Perez and Sauber will equally want to complete a strong race this weekend with it being the founder of Sauber, Peter Sauber's birthday today.
"It was his birthday and we all congratulated him," he said. "It is a very good atmosphere in the team, everybody is very happy, and we are looking forward to the last four events."
by Simon Evans