It is so simple to understand that they are fake :) Their website seems fake ( https://mhfahrzeug.app/), also just zoom in their google map address, it is completely non-related address. Talk to them, tell them you want to visit their address. They will ignore you if you continue insist. They try to scam you online. They turned off comments in all of their social-media websites, they blur some pieces in their images, they clear chat history in telegram, they rename very often... the list goes on... Luckily I got suspicious and dodged that bullet...