Gallivanter
Gallivanter is a vehicle manufacturer that features in GTA 6.
The brand made its debut in GTA 5, returning in GTA Online before making its second-ever single-player appearance in GTA 6.
The company is known exclusively for its Baller SUV lineup, with a second-generation Baller visible several times throughout Trailer 1 and 2.
Since its last appearance, the Baller has undergone several design changes, which could indicate that it's a brand-new vehicle entirely.
However, knowing Gallivanter's naming patterns, it will no doubt still be called the Baller.
The brand appears to be based on the real vehicle manufacturer, Land Rover, with Baller being a reference to the extensive Range Rover lineup.
This is evidenced by both Rover and Gallivanter being synonyms for 'wanderer.'