So far as I know (and I've been researching Cadillac history since I was 16 and I'm now pushing 71) there are no official production records for these "Caribou" pick-up conversions. Some club members here have quoted estimated production figures that I consider perfectly reliable. According to one of its own advertising flyers, in 1986, the Caribou Motor Company (Grover City, CA, USA) built Cadillac pickup conversions since 1954; these combined the luxury of a regular automobile in a pickup. The designer and engineer behind most Caribou pickups (as others have stated here) was Lou Schorsch. A power operated tail gate was a first on the 1986 version. These conversions were available through Cadillac dealers or directly from the Caribou Motor Company, on Coupe de Ville models from 1974 to 1986. The company boasted in 1978: Every Caribou is a show car that stands out for years to come as one of America's truly practical automobiles. The Caribou is the ultimate passenger car pick-up. Cadillac standards are used throughout the construction of your Caribou, along with numerous inspections, to maintain the highest quality possible. To order your Caribou, you must use your [own] automobile. Select the finest car you can find. Try to avoid using a wrecked or damaged car. It's best to start with the best. Orders were taken with a 50% deposit, the balance being due on delivery. The advertised costs in 1986 were as follows: conversion from a 1974-76 Cadillac Coupe deVille, $10,500, from a 1977-79 Coupe deVille, $12,500, and from a 1980-86 Coupe de Ville, $14,500. There was an article about these conversions in Motor Trend Magazine, circa May or September, 1975. One club member in Oregon has a "Cadillac Coupe deVille Mirage" pick-up conversion from Traditional Coach Works Ltd. (USA); it carries a "Caribou" badge