Inconsistent physics simulation occurring with vehicles

Physics seems to be highly unpredictable when it comes with Wheeled Vehicles, where the results of the physics changes each time it is simulated.

1. Download the attached project, unzip it, and open it
2. Press Play and observe the physics of the vehicles
3. Stop the session and press play again.
Result: The physics always have different outcomes
Expected: The vehicle physics should be consistent

Fix UE-51650

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