Rockstar is aiming to give GTA 6's cars some of GTA 4's physical weight while keeping the accessibility of GTA 5. Rob Nelson described that goal in creator TGG's vehicle interview, reported by GamesRadar.
Nelson says the vehicle physics were rebuilt for the current hardware, with more control over drivetrain, tires, suspension and steering. That gives the team several ways to distinguish a car's response rather than making every vehicle feel different through speed alone.
Weight and difficulty are different things
A car can look and feel heavy without making every corner difficult. The useful question is how clearly it signals what will happen when the player brakes, turns or accelerates.
Suspension movement can communicate weight transfer. Tire response can make a loss of grip understandable. Steering can determine whether a correction feels immediate or needs anticipation. Those are examples of why the individual parts Nelson names matter; they are not measurements of the unreleased game's behavior.
The comparison with two earlier GTAs describes the target. It does not establish that GTA 6 reproduces either game's exact handling settings.
Vehicle behavior and button layout answer different questions. For the inputs themselves, see the reported handbrake and sprint controls, including the limits of the preview reports.
The road changes the experience too
In Troiscouleurs' separate demonstration, the same street became busier later in the session, with Nelson identifying rush hour. That is relevant because traffic can change a route's difficulty even when the car's physics stay the same.
A road that gives plenty of room for a turn during a quiet drive may require a different line when it is crowded. Vehicle feel and the space available to use it will both influence a pursuit.
These were developer-led demonstrations. Independent hands-on testing will be needed to judge steering precision and recovery from mistakes. For another condition that can affect the journey before handling comes into play, see the refueling report.