I take umbrage against this ad in particular, because I drove a stick shift for years, and not a single one of my male friends had any idea how to drive it. Whenever we were in a situation when I needed someone else to drive my car. I was always S.O.L., because hardly anyone knew how to drive it, and IN FACT the only one of my friends that COULD drive it, was a female.
This is all besides the point, though.

"They tell us, we mistake our sex and way;/ Good breeding, fashion, dancing, dressing, play/ Are the accomplishments we should desire;/ To write, or read, or think, or to enquire/ Would cloud or beauty, and exhaust our prime;"
-Anne Finch,  The Introduction 

Finch as well as a couple other of our women writers so far this semester have touched on this subject, this concept of intelligence marring women's beauty. To be intelligent, or outspoken, not only can be met with punishment, such as in bell hooks' case, but it can also reduce a women's eligibility as a proper wife. "Boys don't make passes at girls who wear glasses." Sure, glasses can be cumbersome or thick and unstylish, but does this maxim say something more? 
Women are sometimes afraid to say what they really mean, because they risk being accused of being masculine, no? I think many girls, especially in high school, made an effort to be seen as ditzy, blank, innocuous, because boys responded in a certain way. But men enjoy "dumb" women because it enables them to boost their ego easily, giving them power and authority over their "foolish" female companions. It is very easy to appear powerful if you have someone willing to be dominated and outsmarted following you are around.
The result is mature, adult women speaking in baby-voices, thinking it is sexy. Clever, capable women pretending to be dead-behind-the-eyes, refusing to participate in intellectual pursuits or even seeking the profession that interests them, simply because they fear the harsh insecurities of the men in that field.
 While some men indulge in the petty practice of belittling their girlfriends to seem bigger, they do not respect these women, and these women end up being left behind. Because, in the words of Ferris Bueller, you can't respect someone that licks your boots. So nobody wins, and everyone gets hurt.
However, most men are good, and prefer to wait for an intellectual equal, because being with someone pretending to be mindless is very similar to being alone. It is a lonely feeling. So I'm going to choose to not hold it against them, because we grow out of these sort of childish things. Usually, at least; some do not grow out of it, and this is the sad part. Many men who belittle women's intelligence do go on to marry and have children, and encourage their daughters to seek good fashion sense, and send their sons to universities, all the while seeing to it that the mother of his children never savors the sweet flavor of self-respect.