Kammala wannan jumla: A 1993 bayan shekaru hudu a Formula One tare da sakamako guda daya kawai mai mahimmanci ga injin, Bob Lutz na kamfanin mahaifiyar Lamborghini Chrysler, ya yi yarjejeniyar hannu da shugaban McLaren Ron Dennis don ƙungiyar ta gwada LE3512 don tantance ikonta a matsayin mai cin nasara. McLaren ya yi gyare-gyare na motar tseren su, &lt;a href="McLaren%20MP4/8"&gt;McLaren MP4/8&lt;/a&gt; wanda aka yi wa lakabi da MP4/8B, don gwada injin (motar gwajin ta ɗauki watanni uku don gyara don dacewa da V12 mafi tsayi da nauyi). An kammala gwajin ne ta hanyar zakaran zakaran duniya sau uku Ayrton Senna, da kuma zakaran zakaran duniya na gaba Mika Häkkinen a duka Silverstone Circuit a Ingila da Estoril Circuit a Portugal. Bayan tafiyarsa ta farko da motar a Silverstone, Senna ya ba da shawarar wasu canje-canje ga Forghieri (ƙaramin mummunan 'babban ƙarshen' da matsakaicin matsakaici), kuma ya yarda da ƙarfin injin ya karu daga kusan kuma duka direbobi sun burge sosai duk da cewa injin har yanzu ba shi da abin dogaro (Häkkinen ya ba da rahoton fashewar injin mai ƙarfi yayin gwaji a Silverstone, kodayake ya yi nasarar zagaye da kewayen kilomita 5,226 (mil 3,260) da ke da saurin da ya kai na dakika 1.4 fiye da ƙungiyoyin MP4/8 na tseren mota da injin Ford V8 ke amfani da shi). A cewar rahotanni, Senna har ma ya so ya yi tseren injin a
Gasar Grand Prix ta Japan ta yi imanin cewa yayin da amincin zai iya zama matsala, aƙalla zai kasance da sauri fiye da motar tsere ta Ford (abin ban dariya Senna zai ci nasara a duka Japan da tseren ƙarshe a Ostiraliya tare da MP4 / 8 na yanzu). Duk da haka, Ron Dennis ya yanke shawarar tafiya tare da injunan Peugeot V10 saboda yarjejeniyar kasuwanci mafi kyau wanda zai ba da kwanciyar hankali na dogon lokaci ga ƙungiyar kuma a ƙarshen kakar 1993, Lamborghini LE3512 ya yi ritaya daga tseren Grand Prix bayan kamfanin Chrysler ya sayar da kamfanin zuwa ƙungiyar masu saka hannun jari na Indonesiya wanda Tommy Suharto ya jagoranta.