behind the wheel , the large , slumped figure wearing the sam browne belt with the badge on the cross-strap was singing an old song in a tuneless , droning voice : `` and we 'll go dancin , baby , then you 'll see ... how the magic 's in the music and the music 's in me ... '' the creature in the driver 's seat killed the caprice 's engine and then just sat there , head down , fingers tapping at the wheel .