I am doing a worldwide census of remaining Peugeot 404s.
As of September 20, 2018 there are:
- 2167 404 Coupé and Cabriolet cars in the Registry (12.5% of total production)
- 4160 other 404 models (sedan, wagon, pickup) in the Registry
Here is the site to register the 404s: 404 Registry