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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.
The 2018 FordÂ® Fusion Hybrid S is a gasoline-electric hybrid which includes SmartGaugeÂ® with EcoGuide to improve your MPG. Learn why.