Accident question, repair costs…

Hello, I used the scooter of my friend (who owns his father ), of course after permission from the friend. Then I had an accident, a wild animal ran in front of the scooter and I threw it at me. Therefore the scooter was broken. The whole thing is now about 6 months ago. Neither I nor the affected cared at first properly, except that he sometimes asked how it looks and I meant I have to call insurance. Now the sufferer makes so much stress at once him R Now he has given me long enough time he wants now 1100 Euro Reperaturkosten otherwise he sues me. On the 1100 Euro he comes through an expert report from a Peuguet dealer who allegedly investigated the scooter. But then he does not want to have the scooter repaired but wants to buy from it a new one. My liability insurance pays nothing, must pay itself. What I wanted to know now, he can demand the 1100 Euro Reperaturkosten from the expert report or only a Z eitwert ( der Roller ist bj. 2003, Peugoet Viva City ) ? Because 1100 Euro is already too much for the scooter, so I think the value of the scooter exceeds total damage. (Nich that I have to make more in court then). Sorry didn’t know exactly where to put the thread, roller doesn’t fit I find.