We recently integrated some very detailed analytics into the apps that we provide for dealers.
What we are finding is if the Dealership informs their customers about it, they use it!
This client of ours holds a "Welcome Meeting" once a month for their new customers and this is where they tell them to download the app among other things.
Here are stats for the past 13 days of this month for 1 of our apps.
112 New Users (New Downloads)
429 Sessions (The app has been opened that many times)
54 profiles created (Customer name, vehicle information, insurance information)
19 Service Appointments made
63 Social Visits (facebook page, youtube, twitter)
17 Calls to Dealership