Uncle Buck (1989 John Hughes & scr)

It's a Mercury Marquis 1975-8 V8. Sounds a bit like the car in Once Upon a Time.. In Hollywood. It was filmed in Chicago.

Interesting editing credits: Lou Lombardo, son Tony Lombardo and Peck Prior, with Gina Lombardo first assistant.

It's a Film for All Seasons.

Miles: "U.B's home."
Buck: "You guys seen Tea?"
Miles: "She took a breeze, U.B."

And the teacher who has the temerity to describe Maizy as "a twiddler, a dreamer, a silly heart, a jabber-box"...

Oh, and that Candy's make up is by Ben Nye Jr., whose dad was Fox's resident makeup artist and who worked on literally thousands of films. (Not really. A lot, though.)