What does 15n mean in cars?

[DeIsla]

In automobiles, 15n represents torque data for naturally aspirated engines. For example, Buick Excelle models use a naming convention combining numbers and letters, where the numbers indicate engine displacement and the letters denote the engine type. Specifically in 15n, the '15' signifies a 1.5-liter engine displacement, while 'n' indicates the engine is naturally aspirated. The Buick Excelle measures 4587mm in length, 1798mm in width, and 1463mm in height, with a wheelbase of 2640mm. It is equipped with a 6-speed DSS intelligent transmission, delivering maximum power of 120kw and peak torque of 230nm.