I agree,

Since I lived in Japan for several years and worked with car companies in Japan like, toyota, mitsubishi, nissan and subaru. They just try to make cars looking good and reduce the thickness of car body and other materials in order to save gas. If you say luxury cars made by japanese company, I will doubt it since japanese always think of saving. Luxury for them just means looking better or nicer or bit neater. Like we saying "XIAO JIA QI'.