Related by context. Frequent words. (Click for all words.) 68 MPGe 51 #mpg [001] 51 ZAP Alias 49 Automotive X PRIZE 49 eStar 49 hydrogen internal combustion 48 electric drivetrain 48 hybrid drivetrain 47 efficient powertrains 46 FlexFuel 46 mpg city/# highway 46 Shell Eco 46 Edison2 45 Selective Catalytic Reduction SCR 44 cleanest diesel 44 BMW Vision EfficientDynamics 44 Hydrogen Fuel Cell 44 Tahoe Hybrid 44 EcoCAR 44 Audi e tron 44 L/#km 44 X PRIZE 44 Challenge Bibendum 43 GS #h 43 Hybrid Synergy Drive 43 #hp [003] 43 EcoBoost engines 43 Multijet 43 Sonata Hybrid 43 #.# liter HDi 43 BlueTEC 43 CALSTART 43 BlueTec 43 BMW ActiveE 42 turbodiesel engine 42 BLUETEC 42 ecoFLEX 42 Nissan Altima Hybrid 42 BlueEFFICIENCY 42 compressed hydrogen 42 electric powertrain 42 Ford EcoBoost 42 hybrid powertrain 42 #PS [001] 42 diesel engined 42 comparably equipped 42 zero emission 42 XL1 42 DRIVe 41 Cobalt SS 41 Toyota Hybrid Synergy 41 combustion engines 41 MPG 41 Northrop Grumman Lunar Lander 41 BEVs 41 Ultimate Aero 41 Kia Motors prides itself 41 hybrid propulsion 41 hybrid powertrains 41 Honda FCX Clarity 41 EcoMotors 41 BioPower 40 Enertia 40 Wheego 40 cylinder turbo diesel 40 Jetta TDI 40 smart fortwo electric 40 Ronn Motors 40 kmpl 40 APEAL 40 PHEV 40 ZEV 40 Altima Hybrid 40 #.#l/#km [001] 40 Honda Civic Hybrid 40 i VTEC 40 zero tailpipe emissions 40 Fisker Karma 40 Mariner Hybrid 40 Toyota iQ 40 propane autogas 40 A3 TDI 40 HYbrid4 40 #i Coupe 40 #i Convertible 40 mpg city/# mpg 39 FreedomCAR 39 AC Propulsion 39 Honda Accord Hybrid 39 #g/km [001] 39 V6 powered 39 FFVs 39 HEVs 39 #g/km CO2 [001] 39 combustion engine 39 Honda CR Z 39 Camry Hybrid 39 F CELL 39 #hp #kW [002] 39 achieving 39 Honda FCX