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An F1 hybrid (or filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where it may appear as F1 crossbreed. The term is sometimes written with a subscript, as F1 hybrid.
Prius Plug-in Hybrid is the perfect fit for those who want a hybrid car with the benefits of extended electric vehicle (EV) driving. 1  It is the most dynamic Prius yet, delivering an unforgettable driving experience with smooth handling and powerful performance.