German VAT (Mehrwertsteuer, MwSt.) is a one-time sales tax at 19%. It is paid by the private end buyer as part of the price. Whether a used car carries it depends on the car's previous use:
- Previously owned by a private person: no VAT on the price, even when a dealer sells it.
- Previously used by a business (company car, lease return, dealer demo) and sold by a company: 19% VAT on the current selling price.
If a listing shows one price, that is what you pay. If it shows a net and a gross price, a private buyer pays the gross price.