Related by context. Frequent words. (Click for all words.) 64 internal combustion 64 internal combustion engine 62 internal combustion engines 62 combustion engine 60 spark ignition 59 V6 diesel 59 hybrid powertrains 59 hybrid powertrain 59 hybrid drivetrain 58 petrol engined 58 electric drivetrain 58 combustion engines 57 turbocharged diesel 57 cylinder deactivation 57 V6 petrol 57 turbo diesel engine 56 Ford EcoBoost 56 V 6s 56 turbocharged engines 56 compressed hydrogen 56 8 CYL 56 electric powertrain 56 zero tailpipe emissions 56 liter naturally aspirated 56 drivetrains 55 electric propulsion 55 Hybrid Synergy Drive 55 conventionally powered 55 #.#L V6 55 #hp #kW [002] 55 #PS [001] 55 #.# liter Duratec 55 #.#L engine 54 V6 engines 54 CVTs 54 diesel engine 54 BioPower 54 #.# liter HDi 54 liter turbo engine 54 #mpg [001] 54 CVT transmission 53 #kW/#Nm [001] 53 BMW EfficientDynamics 53 diesels 53 GS #h 53 produces #bhp 53 EcoBoost engines 53 BlueTEC 53 lithium polymer batteries 53 RX#h 53 comparably equipped 53 turbocharging 53 liter i VTEC 53 diesel engines 53 electrically driven 53 hybrid propulsion 53 liter turbodiesel 52 PEM fuel 52 BlueTec 52 nitrous oxides 52 diesel particulate filter 52 BlueEFFICIENCY 52 turbo diesel 52 turbocharged engine 52 #.# liter TSI 52 ultracapacitors 52 carlike 52 particulate filters 52 lithium polymer battery 52 kW/# hp [001] 52 naturally aspirated 52 torsional rigidity 52 TDCi 52 powerplants 52 EfficientDynamics 52 Duratec 52 #Li 52 normally aspirated 52 bio ethanol 52 manual gearbox 51 powertrain 51 diesel engined 51 BMW #d 51 electric motor 51 powertrains 51 6 CYL 51 cylinder petrol 51 proton exchange 51 aftertreatment 51 Lithium Ion batteries 51 #PS [002] 51 reciprocating engines 51 HEVs 51 FlexFuel 51 exhaust emissions 51 battery chemistries 51 renewable feedstocks 51 liter turbocharged engine 51 particulate filter 51 nickel metal hydride 51 twin turbochargers