Great topic. My opinion on apps in general... There is limited real estate on a smart phone screen. The Apps that make it to a persons screen are there for one of two reasons:
1. Necessity - they HAVE to be there or they need to be there for something to work
2. Desire - end user wants it there
Until dealers, or more likely OEMs, ensure their "app" has one of these requirements, it seems like a no win situation.
I've thought about this so much that I even thought I had the perfect idea. What if the OEMs built an app that was branded by the selling dealer that acted as a secondary remote start key fob. Like the highend alarm systems that allow this. Throw in the ability to lock doors, start vehicle and track vehicle and it creates the necessity and the need. Branding it by the selling dealer allows for dealer marketing and communication to client (push messages, service reminders, etc).
I even went so far as to contacting a few OEMs and Vipers parent company. The message back from the OEMs was one of liability concern.
Anyway, this is how I believe dealers would have a better chance of landing some of that prime real estate on a consumers smartphone.