Heikki Kovalainen says the Korean Grand Prix was Team Lotus's strongest Formula 1 race to date after coming home in 14th place.
The Finn beat both Sauber drivers Kamui Kobayashi and Sergio Perez and finished close behind the Renault of Bruno Senna in one of the team's best displays since joining the sport last year.
Kovalainen, who finished a lap down, was elated with his team's performance.
"After the fantastic performance last weekend in Japan this is another big step forward for us," said Kovalainen.
"Finishing 14th today, ahead of both Saubers and within touching distance of Senna on the final lap is for sure our strongest ever race and it's a great feeling for me and the whole team to see us fighting with a big group of cars right from the very first lap.
"We've been strong all weekend and it's great for the whole team that we're heading towards the end of the season with a car that is giving us a chance to really show what we can do.
"Honestly, I'd like to get straight back in now and do it all over again - now I can't wait for India!"
Team-mate Jarno Trulli finished in 17th position, also a lap down.