Related by context. Frequent words. (Click for all words.) 76 gas guzzlers 70 gas guzzling 64 gas guzzler 59 SUVs 51 Hummers 47 #x#s [002] 46 polluting 46 hybrids 46 vehicles 45 minivans 45 fossil fuels 45 cars 44 Toyota Prius 44 sport utility 44 sedans 44 alternative fuels 44 pickup trucks 43 mpg 43 fossil fuel 43 diesel 43 diesels 43 EVs 42 tailpipe emissions 42 flex fuel 42 Prius 42 electric hybrid 41 Carmakers 41 diesel powered 41 cleaner burning 41 reduce carbon emissions 41 Prius hybrid 40 electric hybrids 40 Hummer H2 40 automakers 40 Automakers 40 carbon emissions 40 Priuses 39 hatchbacks 39 carmakers 39 automobiles 39 Hummer 39 Clunkers 39 clunkers 39 Chevy Volt 39 clunker 39 taxis 39 pickups 39 Clunkers program 38 fuel 38 incandescent bulbs 38 exhaust emissions 38 rebates 38 mileage 38 environmentally friendly 38 gasoline 38 coupes 38 carbon dioxide emissions 38 Honda Insight 38 Tesla Roadster 38 cylinder engines 38 emission 38 CO2 emissions 38 greenhouse gas emissions 37 compressed natural 37 Volt 37 Chevrolet Volt 37 scooters 37 reducing carbon emissions 37 zero emission 37 subcompact 37 Honda Motor Co. 37 polluting industries 37 environmentally conscious 37 SUV 37 wood stoves 37 cabs 37 CR Z 37 Mazda3 36 emissions 36 internal combustion engine 36 greener 36 scrappage scheme 36 diesel engines 36 CR V 36 hydrogen powered 36 Honda Fit 36 trucks 36 pollute 36 autos 36 RVs 36 greenhouse gases 36 windfall profits 36 carbon emission 36 guzzle 36 greenhouse gas 36 polluters 36 mopeds 36 hybrid 36 RAV4 36 conspicuous consumption 35 Hybrids