Joules is correct. Most of the last 73's and all of the 74's that I have seen came from the factory with a smoother satin black finish. Not sure at what serial number the change was made. Also the factory bed line appearance on many of the 80's Pantera's seems to be more "controlled" with a smaller pebbled finish. On some of the 71 and 72 models the engine compartment is quite terrible. Some of the cars look as if a blind child took a can and just sprayed wildly. I guess, just personal preference, but it is another reason why I prefer the later L models out of the Ford era Panteras. I find the look of the satin black to be much more finished looking. I wouldn't spray bed liner under the hood of any of the 60's or 70's era muscle cars I like either, so I don't see it suiting my Pantera.