Karthikeyan joined the Japanese series at the start of the 2019 season with Nakajima Racing, marking a major shift to sportscars after a career largely based in single-seaters – including the three seasons in Formula 1.
He and Nakajima Racing Tadasuke Makino initially struggled for results in the opening half of the season, before scoring a breakthrough podium in a weather-affected Sugo race in September.
Karthikeyan then single-handedly won the second leg of the SUPER GT x DTM Dream Race at Fuji, overcoming three separate safety cars in an attritional crossover event between the two championships.
However, ahead of Honda’s annual motorsport programme announcement on January 10, Karthikeyan has confirmed that he will not continue in SUPER GT for a second season.
“focus his attention to developing his other automotive related business ventures” while continuing racing in an as yet unknown series.
“2019 has been an amazing year for me, but also a mega-busy one,” Karthikeyan said. “I’ve travelled to Japan so many times I've lost count actually!
“My year ended in the most amazing way ever – by winning the DTM x JSGT Dream Race. I would like to say thank you to Satoru-san and the entire Nakajima Racing family for making it such a fantastic year.
a second family in Japan.
“It’s been such a privilege to work with all of them, especially Nakajima-san himself, who is a true legend of motorsport.
complete trust and support.”
Satoru Nakajima, whose eponymous team also fielded Karthikeyan in Super Formula between 2017-18, added: “Narain adapted very well to the new demands of the Honda NSX-GT Super GT500 car in 2019.
“It was a difficult start to the year, but in the second half of the season, his hard work and strong work ethic showed, as the improvements in his performance were very good.
“His win at the DTM x JSGT Dream Race was a very difficult one, but he drove superbly, winning against some of the best sports-car drivers in the world.
“Although we would have liked him to continue racing for Nakajima Racing in 2020 and beyond, Narain has decided to explore other opportunities, including some in the business world.
“He informed me of his decision a short while ago, and we are all very happy to support him. He will always be a part of the Nakajima Racing family. We all wish him well in his future endeavours, and look forward to welcoming him back to his second family in Japan soon.”
Following Karthikeyan’s departure, Nakajima Racing is expected to feature an all-new line-up comprising SUPER GT stalwart Takuya Izawa and GT300 graduate Hiroki Otsu.
Makino could move across from Nakajima to Kunimitsu, replacing Jenson Button alongside Naoki Yamamoto.
#64 Nakajima Racing Honda NSX-GT: Narain Karthikeyan, Tadasuke Makino