Rubuta ci gaba ga wannan sakin layi - Don kakar 1990, an sabunta motar, ta zama FW13B. Ya ƙunshi sake fasalin gefen gefen da haɓakawa na dakatarwa, da kuma injin V10 na Renault RS2 3.5. FW13B ya tabbatar da sauri da kuma abin dogara, tare da Patrese da Boutsen lashe tseren daya kowanne <unk> Patrese a "gida" a San Marino (San Marino Grand Prix an gudanar da shi ne a Imola Circuit a Italiya kamar yadda karamin Jamhuriyar San Marino ba shi da isasshen ƙasa don tseren tsere), kuma Boutsen a Hungary
bayan kuma da'awar matsayi na farko. A cikin tseren na ƙarshe, Patrese ya kammala sahun gaba na Williams, ya tuka mafi saurin tseren tsere kuma ya gama na huɗu, yana ba wa ƙungiyar abubuwa da yawa don yin bikin wannan karshen mako. Koyaya, ƙungiyar ta sauka zuwa na huɗu a Gasar Masu Gina, a bayan Ferrari (wanda Alain Prost ya ƙalubalanci Gasar Drivers) da Benetton (wanda ya lashe tsere biyu na ƙarshe na kakar godiya ga tsohon direban Williams Nelson Piquet).