John, the illusion is clearly demonstrated in the opening post. I didn't expect you to accept it. The mistake that you, and anyone else who fell for it, has made is that you didn't realise Jackie was leaning diagonally across the trunk.
It's that simple.
Look again with open eyes and an open heart and I'm sure you'll see it.
Jackie's hands are on the spare tire/ continental kit, or right above it.
Once you understand why the limo must appear faster..but you haven't yet.
Z381 to Z382. Costella version. In 1/18th of a second, no less.