To meet stricter global emissions standards, carmakers are trying to squeeze every last bit of efficiency out of internal-combustion engines. That has led Infiniti to turn to a technology engineers have toyed with for some time, one that so far hasn't been used in production cars. General Motors, Mercedes-Benz, and Saab have all experimented with... Infiniti variable-compression engine: more complexity, incremental gains
To meet stricter global emissions standards, carmakers are trying to squeeze every last bit of efficiency out of internal-combustion engines. That has led Infiniti to turn to a technology engineers have toyed with for some time, one that so far hasn't been used in production cars. General Motors, Mercedes-Benz, and Saab have all experimented with...