This is my proposal for a perfect design:

• If a racing map has no physics (legacy or fixed) flag in meta.xml / Map settings, default to legacy. So that old maps need no intervention to provide the same experience as which they were designed for.
• When a racing map starts that has a specific physics flag in meta.xml / Map settings, apply it accordingly.
• Make sure that if "race" gamemode stops, it restores the glitch state to what it was when "race" loaded, or what it was before the first map that "race" decided a physics setting for (based on the map properties).

So then, racing servers only need to update mtasa-resources when MTA 1.7 releases in the coming few weeks, something that has been stressed with every new release anyways.
@xLive

This is my proposal for a perfect design:

• If a racing map has no physics (legacy or fixed) flag in meta.xml / Map settings, default to legacy. So that old maps need no intervention to provide the same experience as which they were designed for.

When a racing map hasn’t set the physics mode, it will use whatever the server has set in the race resource settings. By default, it was fixed, but I’ve now changed it to legacy.

• When a racing map starts that has a specific physics flag in meta.xml / Map settings, apply it accordingly.
• Make sure that if "race" gamemode stops, it restores the glitch state to what it was when "race" loaded, or what it was before the first map that "race" decided a physics setting for (based on the map properties).

The PR already does both of these. It applies the new settings based on what each map has in its meta settings. If the map hasn’t set anything, it uses the values from the race resource settings. It also restores the glitch state when the race resource stops.

Side note: I suggest we use fixed physics mode for the default race maps to benefit from the physics fix. From quick testing on several maps, it’s very unlikely they will be broken by fixed mode. If that’s okay, I will change them in a future PR.

Side note: I suggest we use fixed physics mode for the default race maps to benefit from the physics fix. From quick testing on several maps, it’s very unlikely they will be broken by fixed mode. If that’s okay, I will change them in a future PR.

Fine by me, when it comes to "Racing maps becoming unplayable" with the physics fix, it's about more complicated "DM/OS" race maps that involve crazy loops and stunts that are shaped/reclined in a way that it's for a specific timing of moves and physics behavior on approach of the vehicle and its deceleration and yaw. If not for that, it will be for the muscle memory of players that have trained and memorized how to pass these map portions without failure or time loss.

It doesn't apply to classic street racing maps, like the ones in official resources. But if anyone thinks im wrong, please correct me.

And thanks, nice PR, i didnt look at the whole thing before my previous comment. Seems you've got it all covered!