Related by context. Frequent words. (Click for all words.) 52 AC Propulsion 52 AFS Trinity 50 Karl Benz 50 EcoMotors 49 electric powertrain 48 inventor 46 WiTricity 46 Xtrac 46 invention 46 Gottlieb Daimler 46 Ovshinsky 45 inventors 45 Hybrid Synergy Drive 45 inventor Dean Kamen 44 Visionary Vehicles 44 Lotus Engineering 44 REVA 44 Ferdinand Porsche 44 electrically driven 43 horseless carriage 43 Sakti3 43 inventions 43 Tesla 43 hybrid powertrain 42 combustion engine 42 RAV4 EV 42 Codon Devices 42 Nucleonics 42 Argetsinger 42 Henrik Fisker 42 Thomas Alva Edison 42 electric drivetrain 42 Fiat Powertrain Technologies 42 internal combustion engine 42 hybrid powertrains 41 Lauckner 41 Honda FCX Clarity 41 CODA Automotive 41 Coda Automotive 41 Hybrid Vehicle 41 rotary engine 41 electric hybrid 41 Volkswagen Scirocco 41 Aptera 41 BlueTec 41 Prius 41 MultiAir 41 Dr. Ing 41 Malcolm Bricklin 41 Accord Hybrid 40 Horch 40 ActiveE 40 EDAG 40 Lemelson 40 Wiesmann 40 microcar 40 Lexus RX#h 40 Mobion 40 Toyota Prius 40 Steorn 40 ZAP Alias 40 Tesla Motors 39 rear engined 39 electrically powered 39 LS #h 39 Gassenheimer 39 roboticist 39 cleanest diesel 39 electric powertrains 39 electrolyzer 39 Fractus 39 Electrovaya 39 compression ignition 39 patent 39 internal combustion engines 38 FCVs 38 electric propulsion 38 hybrid Toyota Prius 38 electric motor 38 hybrid Prius 38 Stark Draper 38 Stephen Wolfram 38 NiMH battery 38 Inventor 38 Buckeye Bullet 38 Lemelson MIT Program 38 NHTSA 38 UQM Technologies 38 Edison2 38 Ravicher 38 HandyLab 38 patented 38 V2G 38 Popular Mechanics magazine 38 Honda FCX 38 EEStor 38 hybrid drivetrain 38 Dean Kamen 38 iCar 37 Yeda 37 petrol engined