Maybe it is just the Amazonification of everything, but I am still waiting for the day when there are timely updates around the vehicle status when in service. For example, I got married a few months ago and when I bought the wedding ring I would get timely updates around what was going on: ring is in the design phase, ring is in production, ring is being polished, etc.
Majority of the data points needed to feed into an interface (or even a simple text) for the service customer to see the status are already there. Customers could ask questions, approve additional service recs, etc. you could bake in more organic opportunities for the customer to value their trade, etc. seems like that would remove friction while also providing transparency/helping CSI scores.