Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla Williams FW31 wani motar motsa jiki na Formula One, wanda aka tsara da kuma gina ta WilliamsF1.
Tabbas, mafi rikitarwa na jumla shine "Williams FW31 ita ce motar tseren motar Formula One, wanda Williams zai yi amfani da shi don yin gasa a cikin kakar 2009 Formula One. "