Related by context. Frequent words. (Click for all words.) 60 Continuously Variable Transmission 57 Optima Hybrid 57 #.#L V6 #V SOHC 57 #.#L I4 #V DOHC 57 zero tailpipe emissions 56 #V MPFI DOHC 56 8 CYL 56 DOHC Special Purpose 56 Hybrid Concept 56 #.#L V6 #V DOHC 55 #V MPFI OHV 55 kW/# hp [002] 55 eStar 55 Hydrogen Fuel Cell 54 #.#L I4 #V MPFI 54 kWh lithium ion battery 54 hydrogen internal combustion 54 #.#L V6 #V MPFI 54 conventional internal combustion 54 #.# liter Duratorq 54 Hybrid Vehicle 53 Direct Injection 53 turbocharged petrol 53 BMW ActiveHybrid X6 52 Solid Oxide Fuel Cell 52 Fuel Efficient 52 Voltec 52 Flextreme 52 #.# liter I4 52 Theta II 52 Capstone MicroTurbine 52 Turbocharging 52 conventional combustion engine 52 electric drivetrain 52 Ultracapacitor 52 TOP SELLER 52 Battery Powered 51 Hybrid 51 #.# liter TDI 51 @ #rpm 51 Chevrolet Tahoe Hybrid 51 Hybrid Vehicles 51 4dr 51 urea injection 51 proprietary Lithium Ion 51 Hybrid Cars 51 Lithium Ion Batteries 51 hybrid powertrain 51 Saab BioPower 51 li ion battery 51 #.# liter #PS 51 compressed hydrogen 51 ePower 51 Lithium Battery 51 Lithium Ion batteries 51 hybrid powertrains 50 produces #kW 50 Lithium Ion Battery 50 membrane electrode assemblies 50 lithium ion polymer 50 Silverado Hybrid 50 #.# liter Ecotec 50 emits #g/km [002] 50 twin turbo diesel 50 Rear wheel 50 mpg city/# highway 50 turbodiesel engine 50 Mercury Mariner hybrid 50 ECOnetic 50 #.#L diesel 50 Lithium ion 50 BEVs 50 Lincoln MKZ Hybrid 50 hybrid electric 50 #/#-mpg rating 50 #.# liter TDCi 50 hybrid drivetrain 50 BlueTec 50 rechargeable Lithium Ion 50 electric powertrain 50 SULEV 49 TDI diesel 49 Fluence ZE 49 Mode Hybrid 49 #kWh [002] 49 C MAX Energi 49 Metallic Paint 49 Rechargeable Batteries 49 variable geometry turbocharger 49 High Precision Injection 49 watt compact fluorescent 49 Turbo Diesel 49 Li Ion battery 49 twin turbo engine 49 Motor Assist IMA 49 Luxury Sedan 49 Unveils Next Generation 49 cylinder turbocharged 49 Midsize Car 49 iMiEV 49 electrically driven