Brazilian GP: HRT Sunday quotes

Narain Karthikeyan - 18th: "It has certainly been one of the most difficult races of the season given the changing weather and track conditions. But I am very satisfied with how we all dealt with it and the way we drove. It was a bit of a gamble as weather conditions kept on changing during the whole race and it was easy to loose tyre temperature or overuse them when the track was drying out. But we managed the situation well and got both cars across the finish line, which is a positive way to finish the season. I want to thank the whole team for the work they've done all year and I am very proud to be part of this team."

Luis Perez-Sala, Team Principal: "What an amazing and difficult race! The changing conditions made it quite challenging out there and both drivers stayed fully focused from the beginning to the end and put in a fantastic performance. The work that all mechanics and engineers did in the garage was also very good and both cars got to the checkered flag, which is the best way to finish this long, tough but rewarding season. I am really proud of every single team member, without whom this season wouldn't have been possible. But also thank our sponsors, partners and fans alike for their continuous support."