Pandora revealed today that its Internet radio service has been activated in over 2.5 million vehicles to date, through integrations with 23 car manufacturers and eight third-party stereo brands.

The milestone is a small one considering the total number of drivers in the United States, Australia and New Zealand – the only countries where Pandora is currently available – but it points to a wider adoption of music streaming services by drivers.

Unlike Spotify, Rdio and Deezer, Pandora doesn’t offer any traditional on-demand streaming options. The service uses infinite playlists instead, known as ‘stations’, based on a particular music genre or artist. Competitors such as Last.fm have struggled to stay relevant over the last few years, but Pandora has shown consistent growth.

Read the full story: The Next Web