Turbocharged engine of the biggest advantages is that it can not increase in engine displacement on the basis of the substantial increase in engine power and torque.

涡轮增压发动机的最大优点是它可在不增加发动机排量的基础上，大幅度提高发动机的功率和扭矩。

youdao

Such changes are often done to denote a modification in engine displacement.

FORBES: Nameplate Engineering Is Bad Business

The radical minimalism of these machines, built mostly in Europe in the 1950s and early '60s, reflected the region's postwar scarcity. (One resourceful builder beat old cooking pots into fender panels.) They typically measure 10 feet long or less, with less than 700-cc engine displacement and one or two seats arranged side by side or in tandem, scooter style.

WSJ: Dan Neil on an Auction of Microcars Owned by Bruce Weiner

The engine gives 800 CV and revs to a maximum of 9, 250 rpm, a record for an engine of this displacement.

FORBES: Ferrari Debuts LaFerrari, Joins McLaren, Porsche In Hybrid Hunt