My opinion (having owned 4 "real" Novas) is that the Toyota thing is NOT a representative picture of the subject at hand.  My preference would be a first generation Nova (62-65), but a third generation (68-74) example would be fine with me.  In addition, there should be NO predecessor and the successor should be the Citation, since the first "Nova" was produced in 63 as a brand new model.  (Although technically it was initially called a Chevy II at that time.)