Wow.... i'm surprised you even remember seeing one at all that long ago. Especially since it was before Batman himself had been created....
I dunno what your on about but the opel replica I saw was about 5 years ago, it was well done but small.
I saw one 89 years ago I think it was on an opel car, I missed the chance to buy it now I see several people sell these 89 cars.
I would like one. I would like a screen acurate suit 1st.