I guess I see it more as ironic (the juxtaposition of pin-up model craving uber-geek product) and thus humourous as opposed to gratuitous.
The two bikini clad women fighting in a Bud commercial is what I'd call just gratuitous (that said, I must confess to enjoying that commercial
.
There is certainly more titillating material on the web than the Dom 3 ads, but I respect that people might find all this offensive.
Luckily for me I find it funny. I don't like feeling offended.