Answer:
Disruptive innovation
Explanation:
Japanese car makers are engaging in disruptive innovation.
Disruptive innovation is a type of theory in business that is related to the entrance or interrupt of a company in an already existing markets.
So here, as we can see that Japanese car makers are also entering in the U.S. automobile market that is an existing market, we can say know that it is also a type of disruptive innovation.