2016 BMW M4 GTS: We Drive the 493-hp Water-Injected Wonder
 

About three-fifths of your body mass is water, the key to life. Scientists scour the reaches of the universe for its liquid form hoping that where they find water there may be other life. BMW has found some life in water, too, squirting the stuff into the intake plenum of the M4 GTS’s S55 twin-turbo […]

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