Ok when I saw this last this last 2014 GMC Sierra "Cold Rolled Steel" add I could not believe my eyes. One of our subs in a TV commercial??!! Nah, I said to myself....
Then I started doingsome Google searches which ended with more commercials.. I was starting to doubt myself. so I changed my question to "which submarine was used in the GMC Sierra commercial?" and I found a link via Facebook to Spectral Motion. When I when to the link I found this and laughed my ass off.
~~Cris
The H&R Block Aircraft Carrier commercials  where shot on the USS Hornet.. and Lots of CGI.  And here is a Facebook link.  | 
PART 1: A Physics Lesson: or what you can get away with on television commercials. – part 1  October 22, 2011
PART 2: A Physics Lesson: or what you can get away with on television commercials. – part 2  November 6, 2011
and for flight simmers:
What you can get away with on TV – Pam Am: Unscheduled Departure November 14, 2011
			    


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