What does the number at the rear of an Audi represent?

[MacJulian]

The larger the number at the rear, the higher the grade. The number at the rear of an Audi represents the car's acceleration capability, which is calculated using a complex formula. The larger the number, the greater the car's acceleration and power. Audi is a German automobile manufacturer. Audi has many sedan and SUV models, many of which are domestically produced. In terms of power, the Audi A3 uses two engines: a 1.4-liter turbocharged engine and a 2.0-liter turbocharged engine. The earliest Audi models would have labels such as 1.8TFSI, 2.0TFSI, or 3.0TFSI on the right side of the trunk to indicate the engine displacement. Later, to differentiate the engine's power and acceleration, the displacement labels were changed, replacing the displacement indicators with G-values such as 30TFSI, 35TFSI, 40TFSI, 45TFSI, and 50TFSI. The larger the G-value number, the faster the overall acceleration of the model. The 45TFSI has two types of engines: one is a high-power version of the 2.0T engine, and the other is a 3.0T displacement engine.