Related by context. Frequent words. (Click for all words.) 71 HEVs 68 PHEVs 68 EVs 67 PHEV 60 FFVs 58 Mitsubishi i MiEV 57 hybrids 56 HEV 56 Chevrolet Volt 55 Li ion batteries 55 NiMH batteries 55 MINI E 54 Smart Fortwo 54 hybrid electric 54 Transit Connect Electric 54 lithium ion batteries 54 Ampera 54 Volt 53 Chevy Volt 53 CUVs 53 diesels 53 NiMH 53 Nissan Leaf 53 Lithium ion 53 minicar 53 LCVs 52 hybrid powertrain 52 drivetrains 52 Smart ForTwo 52 electric powertrain 52 Fluence 52 i MiEV 52 Flex Fuel 52 compact sedan 52 hybrid 51 minicars 51 Fortwo 51 PEV 51 CUV 51 Civic Hybrid 51 subcompact 51 smart fortwo 50 Honda Civic Hybrid 50 Li ion 50 Electric Vehicle 50 ZENN 50 diesel powered 50 vehicles 50 powertrains 50 lithium ion battery 50 Li ion battery 50 flex fuel 50 Camry Hybrid 49 EV 49 Ford Transit Connect 49 hatchbacks 49 Electric Vehicles 49 Mazda3 49 lithium ion 49 Hybrid Synergy Drive 49 PNDs 49 zero emission 49 hydrogen powered 49 Nissan LEAF 49 Fiesta subcompact 48 Chevrolet Volt plug 48 hybrid Prius 48 conventionally powered 48 Tesla Roadster 48 Hybrid Electric 48 compact hatchback 48 telematics 48 V6 engines 48 Toyota Prius 48 combustion engine 48 EcoBoost engine 48 DMFC 48 electric hybrids 48 Ford Focus 48 MPV 48 Smart fortwo 48 electric hybrid 48 Fisker Karma 48 crossover SUVs 48 Transit Connect 47 bio ethanol 47 ultracapacitors 47 MPVs 47 #Li 47 BLUETEC 47 internal combustion engine 47 midsize SUVs 47 Toyota Prius hybrid 47 Escape Hybrid 47 Chevrolet Volt electric 47 Prius 47 hatchback 47 Zafira 47 electric propulsion 47 diesel engines 47 supercapacitors