Is that the one where he's driving around getting admiring glances from the woman with three kids in her small car? If it is, I'll keep an ear open next time. At a guess, it's a South American dance (rumba?) tune.
It's a tango (nuevo-tango), but I don't know who it's by - I'm also looking for it, since I also heard it at a Melbourne tango club a few weeks back. I've searched heaps of argentinian sites looking for it, but so far no luck. If anyone know what it is, that'd be great.