These vent louvers were a neat and unintentional find. I’d never seen these before, but I believe they were only on the US marketed hatchback 99s between 1974 – 1976. However, it seems that the WagonBack 99 didn’t debut in the US until 1976 [1]. Björn Envall is credited for coining the term CombiCoupé and most likely WagonBack as well. It’s not clear if these vent louvers were on any other model year, but I’ll put them on the car when its ready for them.
