Although it was made in 1981 (as a sequel to an earlier movie I haven't seen), this movie fits into the strange category of 1970's "teen sexploitation" flicks. These kind of films really came into their own in the 1980's with stuff like "Porky's" and "Fast Times at Ridegemont High" after they finally figured out who their audience should be--i.e. horny teenagers (of all ages). With the earlier 70's films though it's hard to tell who they were aimed at. Teenagers is the obvious answer. But while rutting adolescents at 1970's drive-ins may not have been the most discriminating audience, when they did occasionally come up for air, it seems doubtful they'd relate too much to the idiotic caricatures of themselves in movies like this one, or "The Cheerleaders", "Jailbait Babysitter","Cherry Hills High", etc. Perusing some of these titles suggests that many of these flicks might have been aimed more at the dirty old men in what used to be called the "raincoat crowd". But most of these guys had moved elsewhere by the late the 1970's after the legalization of hardcore porn, and this movie despite abundant female nudity is pretty tame even compared to what these, uh, gentlemen were enjoying ten years earlier. (Nor are the girls in this movie too likely to have appealed to your serious perverts--they seem about twenty-five on average and have that ridden-hard-and-put-away-wet look of Hollywood casting couch vets).
But getting to the plot--well,there really isn't one. It's mostly just a group of stupid guys and their slutty girlfriends driving around engaging in allegedly hilarious teen hijinx with frequent interludes of topless softcore sex. In a strange way this like several other of these films ("The Pom Pom Girls", "Maibu Beach") kind of resembles the more recent, seminal film about 1970's teens "Dazed and Confused", but without the nostalgia, the self-conscious irony, the remotely likable (or believable) characters, or the even halfway competent film-making. They DO have a lot of obscure but oft topless actresses with real breasts (one thing about the 1970's that should make any guy wax nostalgic), but this eventually becomes a poor substitute for genuine entertainment.
This film is really little more than a curiosity, probably not worth wasting precious minutes of your life on.