Related by context. Frequent words. (Click for all words.) 62 hybrid powertrains 61 hybrids 57 hybrid electric 56 HEVs 55 hybrid 54 vehicles HEVs 53 EVs 53 FCVs 53 PHEV 53 Wheego 53 FlexFuel 52 efficient powertrains 52 hybrid powertrain 52 vehicles PHEVs 51 V2G 51 PEVs 51 Lithium Ion batteries 50 PHEVs 50 electric hybrid 50 Toyota Priuses 50 FFVs 50 EcoBoost engines 50 i MiEV electric 50 Altima Hybrid 50 brake override 49 pickups vans 49 Prius Plug 49 hybrid drivetrain 49 electric drivetrain 49 lithium ion batteries 49 Lexus RX#h 48 speed automatics 48 HEV 48 technologies 48 CUVs 48 NGVs 48 powertrains 48 E# pumps 48 Hybrid Vehicles 48 hybrid Prius 48 BlueTec 48 vehicles 48 cleanest diesel 47 electric powertrains 47 Toyota Prius hybrids 47 battery powered 47 electrically driven 47 electric hybrids 47 recharging stations 47 Yaris subcompact 47 diesels 46 electric powertrain 46 battery chemistries 46 Prius 46 AFS Trinity 46 battery packs 46 Chevy Volt 46 plug ins 46 Mode Hybrid 46 Flex Fuel 46 telematics 46 conventional internal combustion 46 zero emission 46 Bluetec 46 Ford Fusions 46 minicars 46 Escape hybrid 46 Volt 46 franchised dealerships 46 Chevrolet Volts 46 Visionary Vehicles 45 electric propulsion 45 flex fuel 45 superminis 45 drivetrains 45 hydrogen powered 45 Explorer SUV 45 V2V 45 immobilizers 45 eAssist 45 automakers 45 cylinder deactivation 45 Hybrid Vehicle 45 Fiesta subcompact 45 Chevrolet Volt plug 45 crossover SUVs 45 Chevrolet Volt electric 45 T3 Motion 45 Nissan Leaf electric 45 Prius hybrids 45 microturbines 45 MyFord Touch 45 diesel engines 45 MyFord 45 V6 engines 45 pickups SUVs 45 BlueMotion 45 Automakers 45 Hybrid Synergy Drive 45 Hybrids 45 DRIVe