John Grettenberger, who retuned Cadillac in ’80s, early ’90s, dies

A longtime sales executive with Old Hollywood looks, Grettenberger inherited broad oversight of GM’s troubled luxury brand in 1984, introduced modern engines, sleek convertibles and sport sedans, and helped plant the seed that became the Escalade — one of the automaker’s most profitable and prized nameplates. He was 82.

source https://www.autonews.com/executives/john-grettenberger-who-retuned-cadillac-80s-early-90s-dies