What does 1.2t mean in cars?

[StArabella]

1.2t in cars refers to the vehicle being equipped with a 1.2-liter displacement turbocharged engine. The turbocharger (Turbo) is an air compressor that utilizes the exhaust gases emitted by the engine as power to drive the turbine in the turbine housing (located in the exhaust passage). The turbine, in turn, drives the coaxial impeller located in the intake passage, which compresses the fresh air delivered by the air filter pipe and then sends it into the cylinders. As the engine speed increases, the exhaust gas discharge speed and turbine speed also increase synchronously, thereby enhancing the degree of air compression. Consequently, the engine's air intake increases accordingly, allowing for an increase in the engine's output power.