Yes, this is how physics works and how any vehicle would operate normally. Vehicles coast after running out of fuel because the engine is not active but the wheels are still spinning (thanks to differentials and transmissions ). In order to fix this, simply add a braking function inside the if statement used to check if the car is out of fuel for coasting.
EDIT: Whoops. Misread that. Instead of a braking function, just remove the check entirely.
In the place file in Workspace you have a model called “Add into DriveSeat ‘System Fuel’”
When running there is an error message about Script line 2 in the Engine script where it is expecting to find a seat.
Did you forget to copy that model into the Camaro model or it it supposed to be cloned there?