This is what it sounds like when all seven generations of the Porsche 911 join forces to play their flat-six song. It's beautiful.

Accompanied by the screeching of tires and little else, the seven 911s storm around an empty warehouse, sliding and spinning, creating their own jazz symphony.

Then they team up to play us an actual song: the happy birthday song.

Yeah, we could listen to this all day. And it's not even our birthday.

Now where's the cake?