In the sentence "SUV's are apartment homes on wheels", what is the rhetorical device?

Do you think it could be the device described in this site?

http://en.wikipedia.org/wiki/Metaphor

I think it's either "apartment homes" or "apartment homes on wheels", but I'm not sure.

Search "rhetorical device" on Wiktionary(link on bottom of home page for Wikipedia) and click on "hyperbole"

The rhetorical device they are referring to there is a metaphor. They are equating apartments to SUVs.

Here is a great site on rhetorical devices.
http://www.uky.edu/AS/Classics/rhetoric.html

what is the retorical explanation of this sentence "I would have aced that test if I weren't in a class full of brainiacs. They studied too much and ruined the curve!"

The rhetorical device used in the sentence "SUV's are apartment homes on wheels" is known as a metaphor. A metaphor is a figure of speech that compares two unrelated things by asserting that one thing is the other. In this case, the metaphor compares SUVs (Sport Utility Vehicles) to apartment homes, suggesting that SUVs provide the same comfort and functionality as a living space.

To identify the rhetorical device, you can consider the words and phrases used in the sentence that suggest a comparison or association between two different things. In this case, the connection between SUVs and apartment homes creates the metaphorical meaning.