Rubuta ci gaba don wannan sakin layi - Shelby American yayi aiki tare da Ford don sake tsara GT40 don kakar '66, maye gurbin injin 289 cubic inch (4.7 L) tare da Ford mafi girma, mafi iko 427 cu. in. (7.0 L) injin. Mk II GT40 ya sami babban nasara, tare da nasarar Shelby na Amurka a Daytona, Sebring da Le Mans suna samun Ford a gasar zakarun duniya a shekarar 1966. Motocin Shelby na Amurka sun gama na farko (Miles & Ruby sake) da na biyu (Gurney & Jerry Grant) a Daytona, na farko a Sebring (Miles & Ruby), da na farko (McLaren & Chris Amon) da na biyu (Miles & Denny Hulme) a Le Mans
Ka yi haƙuri. Gurney da Grant za su gama na biyu a Sebring sai dai idan motarsu ta lalace a zagaye na ƙarshe kuma Gurney ya tura ta a kan layin gamawa, ta atomatik ta hana su.