Rubuta ci gaba don wannan sakin layi - Bonnier ya ci gaba da shiga Cooper a lokacin, amma a ƙarƙashin Joakim Bonnier Racing Team banner. Wannan kakar ta kasance mai matukar amfani fiye da shekarar da ta gabata, tare da Bonnier yana samun maki a gasar Championship a Jamus
da kuma Amurka. A cikin Bonnier ya fara kakar tare da tsofaffi Cooper, amma wannan an maye gurbinsa da sauri ta hanyar na musamman, tsoffin masana'antun McLaren-BRM M5A don yawancin tseren wannan shekarar. A tseren karshe na kakar wasa, 1968 Mexican Grand Prix, Honda ya ba Bonnier amfani da RA301 na baya lokacin da injin BRM na McLaren ya lalace yayin horo. Tare da Honda ne Bonnier ya zira kwallaye mafi kyawun sakamakon Gasar Cin Kofin Duniya: na biyar.