Related by context. Frequent words. (Click for all words.) 56 zero emission 55 combustion engine 53 electric drivetrain 53 Tesla Roadster 53 hybrid powertrain 53 internal combustion engine 52 GS #h 52 electric propulsion 51 #g/km [001] 50 e tron 50 EVs 50 hybrid drivetrain 50 Sonata Hybrid 50 PHEV 50 Volt 49 electric powertrain 49 Escape Hybrid 49 #.#L/#km [001] 49 Chevy Volt 49 ZENN 49 EcoBoost engines 49 Bluetec 49 litres/# km 49 Civic GX 48 PHEVs 48 gas guzzler 48 Chevrolet Volt 48 #-# km h 48 electrically driven 48 Ampera 48 internal combustion engines 48 compressed hydrogen 48 internal combustion 48 turbodiesel 48 #hp #kW [002] 48 exhaust emissions 48 BLUETEC 47 hybrid electric 47 CR Z 47 CT #h 47 electric motor 47 Enertia 47 mpg 46 l/# km 46 Hybrid Synergy Drive 46 Lexus RX #h 46 volt outlet 46 Lithium ion battery 46 Fusion Hybrid 46 electric Nissan Leaf 46 hydrogen powered 46 litres/#km 46 tailpipe emissions 46 diesels 46 torquey 46 BMW #d 46 Fisker Karma 45 kW/# hp [001] 45 hybrid propulsion 45 cylinder deactivation 45 BMW Hydrogen 45 turbocharged engine 45 #mpg [002] 45 Lithium ion 45 Hybrid Vehicle 45 combustion engines 45 rotary engine 45 CVT transmission 45 horsepower 45 #.#L engine 45 lithium ion battery 45 V6 engines 45 diesel powered 45 gas guzzling cars 45 hybrids 45 l/#km 45 Mitsubishi i MiEV 45 EcoBoost engine 45 conventionally powered 45 TT RS 45 turbo diesel engine 45 Transit Connect Electric 44 lithium polymer battery 44 hybrid 44 liter turbocharged engine 44 Fortwo 44 #Li 44 0 #km h 44 gas guzzlers 44 Toyota iQ 44 gas guzzling SUV 44 supercars 44 FCX Clarity 44 rpm redline 44 Smart fortwo 44 EcoBoost 44 manual gearbox 44 Cayenne S 44 hp 44 nonpolluting 44 powerplants