I apologize if this topic has been addressed previously, but I would really like to know why Tesla is not offering the Ludicrous upgrade to P85 owners. It is either not technically possible or Tesla has chosen to not include the original P85 owners. While I am far from knowledgeable in this area, but is it not possible to to change the contactor in the P85 to the new ludicrous contactor? I see no obvious reason why not. This leaves me thinking that Tesla could offer this to P85 owners but has chosen not to. Can anyone illuminate this issue and whether there is a technical reason that prevents this upgrade for P85 owners.