I found a 1967 Belvedere I hearse in Belgium in 1990. It was one of three shipped to a conversion company in Brussels. One went on to an undertaker in Sweden, and mine was one of the other two that both went to a pair of brothers that had a family-run funeral business in Antwerp. This was what Xavi3r described - a converted-use station wagon. My car had a 225 with three-speed column shift, HD heater, clock, 200 km/h metric speedometer, stock gauges, no radio, and two-tone blue interior. It also had the Hemi torsion bars, XHD rear springs, 3.23 8-3/4" SG rear, and the 11" manual drum brakes. Underneath, it was essentially the same as a GTX! It was stock with a black exterior. I have a picture somewhere of when it was a funeral car. It had little white lamps on the C-pillars, and a large crucifix mounted on a bar across the roof, atop the front doors. On each corner of the roof were rather ornate flower holders. The rear seat was laid flat, and a board with casket rollers was inserted.
The guy I bought the car from had converted the front brakes to discs, and put a later-model 225 and automatic in it. He also installed the whorehouse red velour seats from the overall donor car - a 1980 Diplomat. Fortuanately, the original interior was included in the deal. My German friend Jake drove the car home for me - 150 kilometers - and it didn't miss a beat. After assessing what all the car needed to go back to stock inside, I went back to Oklahoma a bit later and gathered up interior door panels, a steering wheel and auto column, and lots of little bits to get the car ready to ship back to the US in early 1992. I shipped the car to Houston, where I drove it home to OKC from there. Pretty neat car, overall!
It was one of about 215 '67 Belvedere I six-passenger wagons with the 225/3, total. I still have the build sheet to that car.