I love that song, too, it's pretty and evocative; of course, I was in my forties before I saw Paris and never rode through it in a sports car (only a broken down taxi)...so I don't really understand what Lucy's problem was.
I didn't even get a cab ride when I went there (at the age of 41). We just rode the Metro.
IIRC, it had something to do the world turning orange and the room started spinning 'round. That would do it for me!
Have you ever been a SAHM? Some days, when you've washed the same clothes for the 90th time, cleaned the same dishes, scrubbed the toilets AGAIN, you really do want to "run naked, down the shady streets, screaming all the way"... just for something different to do.