An unnamed speedboat is due to appear in Grand Theft Auto VI, seen along the Vice Beach coastline and racing across the bay in the first trailer, as well as moored behind Jason and Lucia in official artwork. Essentially a bowrider take on the Speeder's silhouette without the extra bow railings, it is based on the Frauscher 1017 GT with influence from the Riva Aquariva Super and Cranchi E26 Classic.
Trailer and artwork appearances
The first Grand Theft Auto VI trailer shows the unnamed motorboat off the Vice Beach shore at 0:13. A second trailer shot, at 0:24, places it speeding through the bay with two other boats. Both sightings are in Vice City, the only region associated with the vessel.
Official promotional artwork also includes the boat tied up behind Jason and Lucia. The material identifies it as a motorboat and shows it in coastal and bay settings, but does not provide a manufacturer name, price, performance information, variants, modifications, or gameplay role.
Frauscher-based bowrider design
Its primary real-world basis is the Frauscher 1017 GT. The GTA VI boat uses a bowrider arrangement rather than simply matching the form of the Speeder, which is the closest named in-game comparison. Unlike the Speeder, it does not have extra rails extending across the bow.
The Riva Aquariva Super and Cranchi E26 Classic also contributed influences to the design, alongside the Frauscher basis. No earlier Grand Theft Auto appearance, model history, manufacturer, or changed specifications are identified for this unnamed boat.
Vehicle data via GTA Wiki (Fandom), CC BY-SA 3.0.