1950 Dodge Coronet Diplomat

1950 Dodge Coronet Diplomat


In 1949-50, a hot new fad was sweeping through the auto industry: the hardtop convertible. Here’s Dodge’s contribution to the styling trend, the 1950 Coronet Diplomat.


When first you hear it, the term “hardtop convertible” sounds like an oxymoron—like “constant variable” or “jumbo shrimp.” Hold on, and we’ll make some sense of it. In the late ’40s, industry product planners discovered that many new car buyers, especially young people, purchased convertibles but then seldom if ever took down the tops. Perplexed by this curious fact—convertibles were significantly more expensive than sedans—they investigated further.


Through interviews, they learned that many owners simply preferred the convertible’s sporty styling and its lower, sleeker roof. Buyers also appreciated the lack of a fixed pillar between the front and rear side glasses. With both windows rolled down, the long, open expanse created the fresh-air feel of a convertible without the exposure to sun and wind that resulted when the top was folded down.


Armed with this knowledge, the automakers quickly responded with a new body style called the hardtop convertible: It had a low roofline and roll-down windows with no center post, but with a fixed steel roof replacing the folding fabric top. This new two-door body type offered both a price savings for customers and a tidy profit for carmakers. The public quickly shortened the awkward term “hardtop convertible” to simply “hardtop, ” and a popular Detroit body style took root.


Dodge’s version of the hardtop, the handsome 1950 Coronet Diplomat, matched the traditional soft-top convertible in sales in its very first year. The hardtop model was renamed Sport in 1954, then rebadged again in 1955 as the Lancer. While they no longer refer strictly to hardtop body styles, the Diplomat, Sport and Lancer nameplates have appeared and reappeared on various Dodge models throughout the brand’s history. The most recent Lancer and Diplomat models were offered in 1989.



  • VulpineMac
    Posted September 12, 2013 at 1:33 pm | Permalink

    So when are we going to get the hardtop back? I’m sick and tired of all these 4-door sedans everywhere.

    • Christopher Judson
      Posted September 12, 2013 at 6:32 pm | Permalink

      What do you think the C200 Convertible is?

      • VulpineMac
        Posted September 12, 2013 at 10:07 pm | Permalink

        What do I think it is? One of the few. One of the VERY few.

    • Andrew
      Posted July 26, 2016 at 2:56 pm | Permalink

      You won’t. They don’t meet rollover standards any more.

  • Jeff
    Posted September 14, 2013 at 12:01 am | Permalink

    One of my first cars was a 1978 Dodge Diplomat 2dr Specialty Hardtop. At least the name carried forward

  • Posted July 11, 2016 at 10:20 am | Permalink

    This inocdtures a pleasingly rational point of view.

  • Andrew
    Posted July 26, 2016 at 2:54 pm | Permalink

    I have one of these. Only around 20 or so ’50s known to still exist. It was a midyear offering, so production was low.

    • Steve
      Posted April 15, 2018 at 7:32 pm | Permalink

      I have a 1950 Coronet Diplomat as well. How long have you owned yours?

  • Posted October 15, 2016 at 10:58 pm | Permalink

    Bon, d’accord, les zagrokarburants pour mettre un tigre propre dans votre moteur : mais quel rapport avec ce qui précède ? Réponse : la jante !

  • Posted October 22, 2016 at 11:50 am | Permalink

    Have you tried those hard rubber toys? I think they are called Kong. There’s an opening to put peanut butter in. They’re suppose keep the dog busy for awhile. Do you have toys for him? ideally, a long walk or run before you go out (who has time for that).

  • Posted December 31, 2016 at 2:35 am | Permalink

    You know, I think I remember hearing that as I got older. That’s so awful! When I was little, I obviously didn’t know what it referred to, so I always pictured something along the lines of a creepier Slimer. So that’s pretty much what still sticks in my mind!

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