Alternate Bluetooth Controls for cars

Would it be possible to add an 'alternate bluetooth control method' option for use in cars so that:

- Pressing 'Previous Track' button toggles between the last two stations played
- Pressing 'Next Track' button to tag current track (Tag Me).

As the UI is great but not exactly car friendly, I thought this would would be a good workaround and be easier than having a more car friendly UI created from scratch!

Thanks