Sex sells, specifically Alfa Romeos.
Fiat has definitely pretty blatantly used sex to advertise its cars in the past. Right from the time the 500 Abarth first became available for sale in the US there were ads with gorgeous supermodels taunting nerds with their hotness. Well, that was kid stuff compared to the new ad for the Alfa Romeo 4C. The ad talks about how the car is moving in ways that can't be measured, alongside quick shots of a couple getting pretty close to just outright fuckin'.
Of course, what is probably the best part of this ad is that it makes a pretty good point, and we already wanted a 4C for all of those reasons even before we saw the ad.