The difference between an arcade game and a simulation is how the tires handle. You need to script "Slip Graphs."

Ackermann Steering: A script logic that turns the inside wheel slightly more than the outside wheel, mimicking real-world steering geometry. Enhancing Realism Through Feedback Code alone isn't enough; the player needs to feel the car.

Kinetic Friction: The loss of grip when the tire spins or slides (drifting).

Running a complex physics script can be taxing on performance.

Server vs. Client: Always run the driving physics on the player’s "Client" (LocalScript) for instant response, then replicate the position to the server to prevent lag.