No noticeable difference.
The surfaces feel the same,look the same ie slick,smooth,shiny,I HATE the microfiber cloth-it seems to stick to my fingers and nails.
If anything,the red Mustang looks wetter with Nu Finish (which is about 3 years old!)
Oh,well,it goes back to Pep Boys along with the Turtle red cure wax with a red lipstick wax stick..useless.....
OTOH,Supa Mags in Ft Lauderdale fully balanced,straightened and polished the Mustang alloy wheels so they shine like chrome for $110 each-
Adrian