Hi. This is a update. I can not get hold of Elon, so if someone wants to help me. I think if enough people share this link on twitter with @elonmusk, he will probably see it and replay. The only answer I have received from Tesla is this: "Hi Trond, Thank you for contacting Tesla Motors, Inc. You will not get the help of Tesla Motors to mount a hitch. Model S is not built or tested to run with the towbar. I have attached the new car warranty for a Tesla Model S. Here is a part of the "Warranty Limitations" "This New Vehicle Limited Warranty does not cover any Vehicle Damage or Malfunction Directly or Indirectly caused by, due to or resulting objects from normal wear or deterioration, abuse, Misuse, negligence, accident, improper maintenance, operation, storage or transportation, including, but not limited to, any of The Following " "Any repair, alteration or modification of the vehicle, or the installation or use of fluids, parts or accessories, made by a person or facility not Authorized or certified to do so; " We do not give up, and this is just the response from a customer service representative. I hope to get answers from Elon or other high up in the system. Share therefore this petition on twitter and other sites. Tesla boss is called @elonmusk on twitter. https://twitter.com/elonmusk