Differing from the WSC R90CKs, Nissan used its R90CPs for the All Japan Sports Prototype Championship. Japanese drivers Masahiro Hasemi, Toshio Suzuki, and Kazuyoshi Hoshino joined Swedish driver Anders Olofsson in the lineup. The cars debuted at the 500 km of Fuji and finished in second and fourth, behind Toyota's new 90C-V.
