Funny: Kaizen means "continuous improvement"
The only thing that's gotten "better" over the last however many years when it comes to car manufacturing, though, is making them impossible for owners to work on, and approaching-impossible for professionals to work on.
Proprietary every-damn-thing up to and including the tools and fasteners, never mind the six figure computer diagnostic machines, the necessity of replacing entire high dollar sub-assemblies when what's wrong is a $2 part within the sub-assembly, and 10X (or more) hours of labor to do routine tasks than they once took, and you've got IMPROVEMENT, all right.
But not for the PURCHASER.
"Honey, stop being cynical. XYZ is a kaizen company..."
"Oh. Why didn't you say so? Go ahead and buy the silver one, then."