Which car for transition when waiting for new cars?

Hello, here’s a perhaps unusual question. My car is from 2006 and has 180,000 km down (Octavia RS). He is well maintained checkbook, but nevertheless it can happen that he suddenly breaks irreperibly. From today to morning. I would then buy another new car (probably again Octavia RS). But then the question arises: What should I drive until the new car is delivered? I drive about 2,300 km a month. I tend to take a car in such a case. A small car that is relatively stable in value and which I can then repel after a few months with as little loss as possible. Perhaps a used Skoda Fabia for 4,000,- €?!? And sell it again for a little over 3,000,- € after a few months?!? However, the waiting times at Skoda are weeks rather than months. Had had to wait at that time about 2 months. What idea do you have or what would you do in my place? Greeting, Karl Heinz