Welcome to 3DPrintBoard.

A good place to start learning about 3D printing is with an overview guide like this one on 3DPrint - https://3dprint.com/82272/what-3d-printing-works/
That will give you an idea of the different types of 3D printers, an idea of what they can do, etc.

There are a lot of existing threads throughout 3DPrintBoard that discuss printer options. Once we have a better understanding of what you are looking for, someone should be able to help guide you.

As to what a $1000 (USD?) printer can do, again, there are different 3D printing technologies. The least expensive are those that melt one form or another of a plastic filament (ABS, nylon, PLA, PETG, etc.) through an extruder. There are wood-based filaments are out there, but even those have fine wood particles mixed into the filament.

Yes, there are ways to scan 3D objects like model cars, or even people. Depending on the complexity of the object, not all scans will print very easily.

Again, spend some time on research and you'll soon better understand the capabilities and limitations. You might also consider looking for a hackerspace or makerspace in your area. They would already be equipped with 3D printers that you can use, and there would be people there that could help get you going.