Rubuta ci gaba don wannan sakin layi - Don 1985, an sabunta MP4 / 2 tare da tsabtace iska da fuka-fuki da aka sake tsarawa (don bin sabbin ƙa'idodi waɗanda suka haramta "fuka-fuki" a fuka-fukan baya na motocin da aka yi amfani da su tun 1983) kuma an yi masa lakabi da "MP4 / 2B", yayin da Porsche ya inganta injin TAG tare da ingantaccen iko (a tsere da kuma cancanta) da kuma yawan man fetur. Dole ne a sake tsara dakatarwa bayan da aka tilasta wa McLaren sauyawa daga Michelin zuwa tayoyin Goodyear lokacin da kamfanin Faransa ya janye daga Formula One. Duk da haka, gasar ta fi ko žasa kama. Michele Alboreto a cikin &lt;a href="Ferrari%20156/85"&gt;Ferrari 156/85&lt;/a&gt; ya yi yaƙi da Prost a mafi yawan kakar, har zuwa lokacin da aka fi amincewa da McLaren da fifikon su a cikin da'irori masu saurin gudu da suka biyo baya a duka gasar. Prost ya lashe kofinsa na farko tare da cin nasara 5 kuma ya rufe taken tare da zagaye biyu har yanzu ya gudu ta hanyar kammala karatun da aka lissafa 4th a Grand Prix na Turai
a Brands Hatch (Prost ya yarda cewa ba ya son 'tuki don maki' kamar yadda ya yi a Brands da tseren da ya gabata a Belgium, amma bayan ya rasa gasar zakarun biyu da suka gabata da maki 2 da 1⁄2 a bi da bi, ba ya son yin haɗarin rasa a karo na uku). McLaren ya yi ikirarin lashe gasar zakarun masu kera na biyu a jere, inda ya zira kwallaye 90 ga Ferrari 82, tare da Williams-Honda da Lotus-Renault a kan maki 71, duk da cewa Williams ta lashe tsere hudu zuwa Lotus uku.