Sport Prototype/Competition
A total of five R90CP/CK cars took part in the 1990 Le Mans race, entered by teams from Japan, the US, and Britain. The NPTI team, which contested the US IMSA Series, ran a pair of R90CKs. When the results were in, No.83 had come in 4th in the qualifier but retired in the final race, while No.84 (B. Earl, M. Roe, S. Millen) was 25th in the qualifier and 17th in the main event.