In 1963, Kuhnke failed to qualify his BKL Lotus at the Rome Grand Prix, along with team-mate Ernst Maring, and both cars suffered engine failures at the Solitude Grand Prix in July.
En 1963, Kuhnke non conseguiu cualificar o seu Lotus BKL no Gran Premio de Roma, xunto co seu compañeiro de equipo Ernst Maring, e os dous coches sufriron fallos de motor no Solitude Grand Prix en xullo.