Claims regulation – claims

Servus, a little misadventure happened to me a few weeks ago. I left a few minor scratches in the bumper to the opponent of the accident. Smartrepair is not possible due to the matte paint. So I asked the paintr and he would take it for less than 300€. PS: Accident opponent offered clarification without insurance. I accepted. Now he came up with the idea for the 3-4 days, which the vehicle is supposed to stand at the paintr to get a rental car. The following basic data (without personal publication) – accident opponents live in a big city and can use Öffis. Vehicle belongs to his partner, who probably uses the car to work. Work path is less than 20km a day. Now the questions: Can he get a rental car in the same vehicle class? Could he or the driver drive a taxi every day at my expense? Ultimately he wanted to settle this without insurance and I read some court judgments in de the victims remained on the cost, because e.g. very low travel distance (under 20km) and due to a good public infrastructure. I ask you for feedback. Best regards