According to my understanding:
1. Price: Under the same configuration, the price of Audi is relatively low.
2. Configuration: Audi has performed well in technology configuration.
3. Maintenance cost: Audi's maintenance cost is relatively low.
4. Power system: Audi and Mercedes-Benz have their own advantages in power system. Audi pays attention to performance, while Mercedes-Benz pays attention to comfort.
5. Brand reputation: Mercedes-Benz enjoys a high reputation in the domestic market, while Audi is known for its low-key and pragmatic.
6. Hedging rate: Both Audi and Mercedes-Benz have higher hedging rates, but Audi has a slight advantage.