
Audi is not a domestic car brand. Audi is a luxury car brand under Audi AG, a subsidiary of the German Volkswagen Group. Here is some relevant information about Audi: 1. Main Models: The main models include A1, A3, A4, A5, A6, A7, A8, Q1, Q2, Q3, Q5, Q7, Q8, TT, R8, and the S and RS performance series. 2. Audi A Series: The A1 series is a compact car; the A2 series is a small station wagon; the A3 series is a compact sedan; the A4 series is a midsize sedan; the A5 series is a midsize sports car; the A6 series is a midsize luxury sedan; the A7 series is a large sports car; the A8 series is a large luxury sedan.


