I only did 5000 miles in 2022, but in my defence I moved house in the middle of it.
As for Citroen 2CV, many years ago, I worked night shifts during the winter, and one of the fella's had a 2CV, we used to take the pe.. out of it, calling it a Puddle jumper and, fairground ride etc etc. But we all had to eat our words on frosty mornings, whilst we were still busy de-icing our cars and scrapping ice off, Dennis who had the 2CV was half way home. Apparently the heater ducts took heat from of the top of the engine, or so he said.