Editing 1615: Red Car

This comic is a take on the common stereotype that men who drive large, expensive, and/or ostentatious cars (such as sports cars, highly-modified cars, and lifted pick-up trucks), do so in order to compensate for insecurity about their manhood. Typically this is summarized as saying they are compensating for having small penises.

This comic thus generalizes the original stereotype to an assumption that men drive cars that compensate for problems/properties with their penis (e.g. large car for small penis). Under this principle, a red car would complement (be the opposite of) a cyan penis.  

In the title text two other opposites are mentioned: {{w|acid}} and {{w|alkaline}}. An alkaline solutions is a basic solution. Thus, men that drive [http://jalopnik.com/5327974/why-cant-you-get-a-nice-basic-car-these-days basic cars] (instead of a special one) are compensating for their acidic penises.

An alternative interpretation to this just being about opposites is that of a more specific big vs small compensation. In each case the car represents something larger than Hairy's penis: in the comic - red has a "bigger" (longer) wavelength than cyan; similarly in the title text - alkali has a "bigger" (higher) ph than acid. Of course against this alternative is that red has a smaller energy/frequency than cyan and that you would often talk about stronger acids, making a low ph count as strong, not small! Finally the joke looses some value if it is still just a matter of big/small rather than actual properties of the penis that are being compensated for.