A small, cozy museum. In my opinion, you don't have to buy a ticket - no one checks them.:(you can't get into the cloakroom at the beginning of January - there are no places, plus a huge queue at the checkout.
The museum contains interesting exhibits from the time of the creation of the Porsche brand to our time. There is an audio guide in Russian, which was given at the entrance to the museum, you can also sit in a couple of cars. M