Many commercials have been influenced by Spaghetti Westerns.
Here are some of the companies that have used SW in their commercials in one way or another.
Ford Ranger (Brazilian):
Ennio Morricone - Man With A Harmonica, as music
Music + Draw scene
Carne Montana Spam Meat
Sky Cinema Classics
Bertolli Pasta Sauce:
Ennio Morricone music
Toyota Corolla -05:
Music from 'Forgotten Pistolero'
Nissan Navaro (UK):
Music from 'For A Few Dollars More'
Mountain Dew Code Red:
The Good, The Bad and The Ugly music
Know of a SW influenced commercial? Email me