Every GTA VI vehicle seen so far, each with a verification badge and a link to the source behind it. Pre-release, most are evidenced from trailers and previews rather than confirmed by Rockstar — the badge tells you which.
Bravado · Sports Car
Spotted in a dense stretch of Vice City traffic in GTA VI's second trailer, the Banshee returns as Bravado's two-seat roadster, its long low nose and vented flanks drawing an unmistakable line to a second-generation Dodge Viper. It has been a fixture of the GTA vehicle roster since the original Vice City, so its reappearance here reads as continuity with earlier games rather than a new model; no interior, pricing, or performance figures have been shown for it.

Grotti · Sports Car
Rockstar's own Ultimate Edition page bills this as a '95-model Grotti Cheetah, framed as the manufacturer's signature sports car of that era and described in the site's own words as an ode to Shore Drive. The official promotional shot backs that framing up, showing a low wedge-nosed coupe finished in white with a red central stripe and script side graphics, parked outside a Vice City high-rise in a pose closer to an eighties or nineties analog supercar than anything futuristic. Rockstar's copy adds that it becomes available to punctuate later-stage story action, which is the only gameplay context given; no price, performance figures, or acquisition method beyond that Ultimate Edition unlock have been published.