Not so fast Alex! dhort? what is that?
Nigel, I used to ship a lot of cars to Japan in the 80's and 90's. What make and year is your Cobra. I suggest you contact a Japanese carrier in Germany because it makes it a lot easier once the car arrives in Japan. You need the ownership title and any papers for your car and an address in Japan where the car is going to. If you are going to Tokyo, the car will arrive in Yokohama assuming you are shipping by boat. Then it must clear customs and then go to compliance. This can get complicated depending on the year of the car. The rules also change year to year. Unlike here in USA they change rules and laws without the citizen's voice. It is therefore recommended that you ask the freight forwarder you want custom and compliance service upon arrival which they will gladly introduce to you.
It just so happens that there is a kit and replica Cobra shop in Tokyo called SUPER CRAFT. As I recall they are an ERA rep there. The owner is Yasuto Yamada. He may remember me from meeting him in Los Angeles and can speak English. You may want to contact him to help you with the whole thing, plus you know who to go to in case you need your Cobra serviced. try
www.super-craft.com but its in Japanese of course.
TEL: 03 3427-3654, FAX: 03 3427-3723
Good luck
Shin Takei