Evolution
First came the horse, then carriage, then horse-less carriage (automobile); this was the evolutionary design lineage until cars no longer looked like- nor were compared to- carriages. Ergo, if there is a valid reason to break with tradition (in order to meet market demands), a design will survive as the next evolutionary link...as long as it's not too radical a change and matches the buyer's lifestyle.
First came the horse, then carriage, then horse-less carriage (automobile); this was the evolutionary design lineage until cars no longer looked like- nor were compared to- carriages. Ergo, if there is a valid reason to break with tradition (in order to meet market demands), a design will survive as the next evolutionary link...as long as it's not too radical a change and matches the buyer's lifestyle.