Yes it
is/was.
PS: Consider yourself fortunate if you have a 500E. Those cars were assembled by/at Porsche & come with the sticker. As stated in popular trade periodicals, the MY94 wasn't. This controversial dichotomy has been a topic of previous deep-dive Board discussion.
Some MY94 owners, seeking inclusion, have gone to great measure to obtain or
create & add these rare/elusive stickers to their E500 cars.