What does Audi PA version mean?

[LeValentina]

Here, Pa refers to nylon, which is mainly used in automobile engines and surrounding components. The main varieties are GFPA6, GFPA66, flame-retardant reinforced PA6, and other products. Below are the specific details about the related content: A-series: Most Audi models start with the first letter "A" of the company's English name (Audi), such as the Audi A2, A3, A4, A6, and A8 series. The higher the number, the higher the grade: the A2 and A3 series are compact cars; the A4 series are mid-size cars; the A6 series are executive cars; the A8 series are luxury cars (currently, the A8 is Audi's top-tier sedan). Other series: In addition to the A-series sedans, Audi also has the S series and TT series: the S series mostly consists of high-performance models, but these are not SUVs, including the S3, S6, and S8; the TT series consists entirely of sports cars.