The 1948 Buick Roadmaster is another late-40s convertible that owes its success in one way or another to the post-war buying frenzy surrounding the end of World War II. Buick completely restyled on the eve of World War II, so its design was technically just a year old when civilian production resumed in late 1945. That means its cars still looked fresh, so it's no wonder that sales went nowhere but up.
![]() The 1948 Buick Roadmaster stood out from the pack of post-war convertibles due to Buick's prewar restyling. See more pictures of classic convertibles. |
Although there were far fewer Buick models than in '42, the 1946-48 lineups again included convertibles in the mid-range Super series (124-inch wheelbase) and top-line Roadmaster (129). Both used smooth straight-eight power -- a 248 and a 320, respectively -- and engine tweaking for 1948 increased horses to 115 and 150. But the big news that year was Dynaflow automatic transmission, a $244 option exclusive to Roadmasters. Though not as responsive as Hydra-Matic, Dynaflow proved so popular that Buick had to double planned installations. So equipped, a Roadmaster ragtop sold for $3081 -- rather pricey then. Still, most of the 11,503 built probably got the new automatic -- and definitely got a lot of looks.

The styling of the interior hearkened to prewar styles while other
automakers went in new directions.
For more classic convertibles of the 1930s and 1940s, see:
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