Autosport magazine SGT silly season report
http://www.as-books.jp/books/preview.php?no=6222
Honda
#8 ARTA Nojiri, Izawa? Fukuzumi?
#16 Mugen Mutoh, D.Nakajima?, Lucas Auer?
#17 Real Tsukakoshi, Kogure
#64 Nakajima Baquette??, Matsuura??, Karthikeyan??, Otsu??
#100 Kunimitsu Yamamoto, Button
Lexus
#6 LeMans Oshima, Tsuboi? Yamashita?, Nakayama?
#19 Bandoh Kunimoto??, Yamashita??, Nakayama??
#36 Tom's Nakajima, Sekiguchi
#37 Tom's Hirakawa, Cassidy
#38 Cerumo Tachikawa, Ishiura
#39 SARD Kovalainen, Nakayama??, Tsuboi??, Yamashita??
#??? New team?
Nissan
#3 NDDP Motoyama?, Chiyo?
#12 Impul Sasaki?, Mardenborough?
#23 Quintarelli, Matsuda?
#24 Oliveira?, Takaboshi?
*Hirate?, Yasuda?, Rossiter?, Hiramine?, Struan Moore?