Official GTA 6 trailers show convertibles on neon beachfront roads that match Vice City / Ocean Drive marketing. The type is on screen. Rockstar has not published a manufacturer, handling sheet, or dealership list for those frames.
Map-6 labels this entry “convertible” on purpose. Fan wikis often assign returning GTA brand names from silhouettes. Those matches can be useful for screenshot hunting; they are not first-party names unless Rockstar prints them on Newswire or rockstargames.com/VI.
What trailers do establish is tone: open-top traffic is part of Leonida’s tourism fantasy — palm-lined strips, night driving, and crowded promenades. That is geography and mood, not a spawn table.
No top speed, class, or customization tree is listed here. When Rockstar names a specific convertible in official copy, this row should be replaced or split. Until then, treat it as a trailer-visible type you can look for while you scrub footage on the map.