The car debuted at the Speedway in 1975 in a modified Indy version of the Formula One Parnelli chassis, although it was not run regularly until late in 1976.
O coche debutou no circuíto en 1975 nunha versión Indy modificada do chasis Parnelli de Fórmula Un, aínda que non correu con regularidade ata finais de 1976.