Some car batteries may be available but I know for a fact that stock of some ran out. We could not get them from the manufacturer.
Same as ECM for cars. You think that Ford, GM or Toyota would not pay a bit extra to be able to sell cars?
Wood saw a huge price increase but also ran out.
Right now try to source tires. Distributors don't have them, you might be able to find 1 or 2 if you are lucky but you could offer double or triple and you still couldn't buy in volume. Material is not available.