We have introduced both the 1/18 scale Cadillac CT5 and Cadillac CT6 diecast models in previous two posts, One 1/18 Scale Cadillac CT5 Diecast Model for Collection and Two 1/18 Scale Cadillac CT6 Diecast Models for Collectors, today we will introduce another Cadillac sedan in the CT series lineup, Cadillac CT4, which was manufactured to replace the Cadillac ATS sedan, and it is the third sedan in with the CT series nameplate.