[settsu]

This is arguably exactly what most people actually need in a vehicle that you are spending thousands of dollars on: accumulated refinements seamlessly incorporated over time.

Year over year this typically results in good outcomes on a purely practical basis. However it just inherently makes for very boring publicity/promotional material.

Edit to add: it can also admittedly result in older solutions getting baked in which prevent larger beneficial changes. (Toyota's North American 4Runner and Tacoma models might be good real world examples of this approach resulting in generally high reliability but also larger, "riskier" changes being seemingly eventually necessary.)