Given I can't find any pictures of the mc68032, I'm guessing it was either mythical to begin with, or it was a prospective product Motorola planned to offer but never ended up releasing it.
EDIT: AHA! It WAS a real product, but it is called mc68012 and is mc68010 derived! It is 84-pin PGA only. See http://www.cpu-world.com/CPUs/68012/