Then came the Lexus from Toyota, the Acura from Honda and the Infiniti from Nissan, brands targeting the upper-middle to luxury size and price ranges.
The Wikipedia link above mentions that Infinitis were Americanized versions of top-of-the-line Nissans marketed in Japan, which helped reduce the cost of launching a new brand overseas.
One feature of the Infiniti launch was a series of television commercials and a print advertising campaign showing rocks, water, and nature in a tranquil mood -- a Zen sort of thing with no images of the cars themselves. Some links dealing with this are here, here and here.
A wisp of this Zen spirit could actually be found on the cars, as can be seen below.
It didn't take many years for both the medallion and Zen-themes advertising to disappear because Infiniti sales were disappointingly low.