There are three places on the car that say "Infiniti" (none on the outside).

Other than the seats, you see "Infiniti" on the computer when the car is started (which I find more annoying than the seats) and the illuminated kick plates. The latter are "optional", but I believe every car at the dealer had them. I wouldn't have chosen them, but they are kind of cool. They would be much cooler, though, if they didn't say "Infiniti".

NONE of this annoys me as much as the "Microsoft Sync" stuff on our Ford Escape (which, btw, really works well- the computer in the Ford is easily as good or better than all of the entry level luxury cars that I looked at).