Alipay Credit Life offers car rental, and those with a credit score of 650 can rent a car without deposit.

I'm not in Xi'an, but I have rented a car several times, usually through Rika or Ehi. Rika's cars are cheaper, and Ehi's are in better condition. There are others like Shenzhou Car Rental. The cheapest one is 70 to 80 yuan a day, plus handling fees, it’s about 120 to 30 yuan. Moreover, some car rental companies offer activities where new users rent for two days, and one day is free of charge.

When you go through the formalities for renting a car, you need to pay a deposit with your credit card. It will be refunded to you when you return the car, but you need to pay an additional 2-3,000 as a violation deposit.