Lifetime map - support old/third vehicle

We have two current Teslas set up as a fleet in TeslaFi. This works perfectly for sharing the location database and displaying their journeys on the lifetime map together. But AFAIK, there is no way to also include our third (now inactive) Tesla on the map even though it's in TeslaFi and shows in our Vehicles list.

Sinxe we like to treat the lifetime map as, well, a lifetime display of our electric journey, this is a shame. Any way to show all of our data on the lifetime map, and not just two vehicles? I imagine that as the Tesla fleet continues to age, this will become more of a concern for more people.