The Spotify Car Thing cost $100, but I can't use it anymore.
EDIT: The only reason why I still had it at this point was because I could use it with other apps. However, now that my Spotify Subscription is cancelled, it doesn't work with anything. It's mildly infuriating because today, I can't still use it with other apps like I was able to yesterday.
Please don't make the same mistake I made. No one should buy this.
My wife and I use ours (I bought 2) all the time. We like the voice activation from the unit and we like the interface for seeing what's playing better than we do our entertainment systems (we have used cars). It's not a slam dunk but it's good for what it does.