<prompt> Bhala okuqhubekayo kwalesi sigaba - Lapho ukuhlinzekwa kwezingxenye ezisele sekuqinisekisiwe maphakathi nesizini, ama-B186 aguquliwe ukufaka uhla lonke lwezici ezintsha ze-aerodynamic kufaka phakathi amaphiko angaphambili nangemuva kanye nomzimba ongaphansi obukeziwe, amaphakheji amasha wokumiswa, kanye nemibono yokuhlelwa ebukeziwe. I-chassis nayo yaqiniswa ngokwengeziwe ukuze ikwazi ukubhekana nokucindezeleka okubangelwa amandla enjini ye-BMW. Iphakethe lokuthuthukiswa laqedwa ngokufika komklamo omusha wephiko elingemuva le-Austrian Grand Prix, lapho ukusebenza okuthuthukisiwe kwe-B186 kanye nesekethe elisheshayo le-Österreichring kwenza kwaba yimoto esheshayo emkhakheni noFabi pole noBerger abahlala emgqeni wokuqala wegridi. Ukuncintisana kwezimoto kwathuthuka kulo lonke isizini, ikakhulukazi engxenyeni yesibili, ngenxa yalokhu kuthuthukiswa. Yabuye yathembeka ngokwengeziwe, nakuba lesi sici sasilokhu singathembekile unyaka wonke, njengoba kwaqedwa izimoto eziyishumi nesishiyagalolunye ezingu-32 ezaqala ukugibela. Ukuncintisana kwamathayi kaPirelli nakho kwaphucuka, futhi ukuqina kwawo kuqhathaniswa namaGoodyears kuvame ukudlalwa ngenzuzo ye-B186, okufanekiselwa nguBerger ngokuwina i-Grand Prix yaseMexico ngo-1986  <response>: ngenxa yokungadingi ukwenza i-pit stop ukuze uthole isethi entsha yamathayi ngenkathi iningi labaphikisi abakhulu ngaphandle kweMcLaren kaProst eyagcina yesibili yenza okungenani ukuma kabili kwamathayi ngenxa yendawo ebukhali ye-Autódromo Hermanos Rodríguez. 