Race gaps don't seem to show in longer endurance races for people who join for their stint. In the server replay, gaps are shown, but in my own replay where I joined after many hours and driver swaps, they aren't.

For example, in the replay attached you should be able to see the gaps from Pete to Blacky straight away, but you can't. In the full replay (downloadable from this thread), you can see the gaps at the same time, or at any time.

Can confirm.