While watching Cars 2 (again) with my son yesterday, I was struck by the scene in which Mater meets a 'headlight seller' in the Parisian marketplace.
In the scene, he approaches a car which appears to be sleeping, and when he questions it, she awakes, opening her eyes which are in her headlight position and not, as is with every other car in the film, on her windshield.
This freaks Mater out and he drives off in alarm.
I am curious to know if this gag, which seems redundant and/or out of place, is in reference to any other animated films - or whether it is a Pixar inside joke. Does anyone have any insight into this?