I contacted Nissan. They stated that the song is called "International" by Asche & Spencer. It looks like they are a firm that comoposes music for movies and creates commercials, among other things. Their website is http://www.ascheandspencer.com/ I haven't been able to find out if the music is available online or for purchase.
> The TV spot features a black Murano driving against a plain color background. The vehicle is animated into a flying bird for a few seconds and then it turns back. There is no voice over... just the instrumental music.