Name That Tune

I am stumped. A few years back, some luxury car maker used a jazzy, slow-ish tempo song in their commercials as this car was being driven around a winding road. I am at a loss for what the name of the song is and I love it. It was something like The Last Greatest Day of Summer or The Last Best Day of the Year or something. I remember seeing the name of the song only one time for a split second on MTV but for the life of me I cannot remember it now. Google has been no help to me. Anyway, that's my random thought for the day!

Edit: I found it on YouTube--It's called The Last Good Day of the Year by the group, Cousteau. Love, love, love it!!