Mexican cars

Warner van.  Granby, Quebec.  5:45pm.  A VW Beetle drives by.

Scarlett:  Look at that Mexican car.
Shawn:  Why is it Mexican?
Scarlett:  Its a car and its Mexican.  Get it?
Shawn:  No.  I don't get it.
Scarlett:  Its a MEXICAN car.
Shawn:  Ummm....
Scarlett:  Oh. Its not a Mexican car.  Pause.  Its a flower car.