Abby has the Twisted Nerve ring on her cellphone, the girls talk about being in China and falling in the ditch (which was a true story that took place during Kill Bills shooting) and on the back of Kims Kill Bill color car you can see a sticker that says Pussy Wagon too. It almost makes you wonder if in Death Proofs backstory, Zoe and Kim both had worked on Kill Bill. Maybe Kim was Vivica’s stunt double. 
