Hello, 4 years ago I registered a self-driving working machine (tax-free). The expert had still wishes for modifications that I did of course, the head of the registration office wanted to visit the vehicle before registration, i.e. show the vehicle. Since then the vehicle has been registered with green registration plates. (company vehicle). In December 2014 I temporarily deregistered the vehicle, wanted to allow it again. This registration was refused by the registration office. I was refused a written statement from the registration office why the vehicle is not registered. After a written request from me for a statement of reasons, the report is now to be examined. Apart from the fact that the vehicle is then worthless, can it be that I have to pay the taxes since 2011 if the expert issued a wrong report? Apart from that, I had for the desired Conversion costs and, of course, over the years to get the vehicle put money in. Just as a note: Not because of a change of law the registration was refused and a change of the report demanded, but because of the error of the expert. (Self-driving work machine / workshop car). With the addition of workshop car is allegedly not given the tax freedom. But the expert had demanded in 2011 the installation of shelves extra! Greeting A.B.