The Knapp JK26, designed by Austrian Johann Knapp, was entered by Tomei Sport and financed by Opel (hence the Opel power unit) in the opening three rounds of the 1993 Japanese F3 Championship. It was fitted with an Opel-development sequential gearbox which caused a lot of problems, the car qualified twice in the top twelve with a best finish of ninth at Tsukuba. The team then switched to a Dallara F393 and Anthony Reid went on to finish 3rd in the championship after a good run of results.