Cadillac Series 452Ds for Sale The Cadillac Series 452D was a big luxury car with a huge engine. The V16 that powered this car was essentially a combination of two straight-eight engines and was created by General Motors in response to the public demand for more powerful and smoother motors. Unfortunately, these luxury cars did not sell all that well during their production in the 1930s. Today, however, the Cadillac Series 452D is a major collector’s item. If you dream of adding one to your classic car collection, stop here at FossilCars for your search.