Nihon Radiators(Nichira) S110 Nissan Silvia Super Silhouette racecar as driven by Impul founder Kazuyoshi Hoshino. Nihon Radiators became Calsonic and started using the familiar blue colour scheme. Impul and Calsonic still have a close relationship. This is an early version of the car. Later versions had an S12 style front grafted on. Motor was an LZ20B twin cam inline 4 putting out 570PS.