Related by context. Frequent words. (Click for all words.) 63 efficiency 48 efficient 46 EfficientDynamics 45 conventional internal combustion 45 BMW EfficientDynamics 44 EFFICIENCY 44 CAFE standards 44 #g/km CO2 [001] 44 Efficiency 44 comparably equipped 43 #.#/kWh [001] 43 efficent 43 litres/# km 43 MPGe 43 hybrid powertrains 43 city/# highway 43 uprates 43 #.#l/#km [001] 43 milage 43 retrofits 42 energy 42 biomass boilers 42 cleaner quieter 42 renewable energy 42 efficiencies 42 BlueMotion 42 hybrid drivetrain 42 GHG reduction 42 1kW 42 mpg city/# mpg 42 environmentally friendly 41 kilowatt kW 41 microturbine 41 environmental friendliness 41 BlueTec 41 #mpg [001] 41 #.#L engine 41 CO2 emission 41 EPAct 41 kmpl 41 unsprung weight 41 EPA SmartWay 41 alternative fuels 41 modularization 41 retrofit 41 efficiency retrofits 41 compact fluorescent lighting 41 Economy CAFE 41 l/# km 41 hybrid powertrain 41 i VTEC 41 efficient powertrains 41 CO2 emissions 40 thermally efficient 40 decarbonisation 40 wind turbines solar panels 40 Retrofit 40 Retrofits 40 conventionally powered 40 Mariner Hybrid 40 emmissions 40 continuous improvement 40 diesel 40 cleaner greener 40 horsepower V6 40 mileage 40 ZEV 39 #g/km [001] 39 GHG reductions 39 Energy Efficiency 39 torsional stiffness 39 electric drivetrain 39 renewables 39 AMD PowerNow 39 #hp #kW [002] 39 turbo diesel 39 lightweighting 39 EECBG 39 alternative energies 39 kWh 39 CO2 emitting 39 4 cyl 39 solar paneling 39 drag coefficient 39 cylinder deactivation 39 carbon emission reductions 39 efficient lightbulbs 39 EcoBoost engines 39 diesel engined 39 Energy Efficient 39 l/#km 39 electric propulsion 39 CVT transmission 39 speed automatics 39 cost 39 Hybrid Synergy Drive 39 #.#L/#km [001] 38 environmentally conscientious 38 GE ecomagination 38 #mpg [002] 38 EnerGuide