The 1990-1992 Cadillac Brougham has always had a hold on me. And never mind the fact that I was nine years old when it first appeared as a facelifted variant of the 1987-89 Cadillac Brougham, in the autumn of ’89. Many 1990-92 “facelift” Broughams have been either driven into the ground or rendered nearly unidentifiable by customizers,…