I do have this in another thread so apologies for repeating it but I wanted to bring this to the attention of anyone with a 60D X order. Ok I got the numbers today if anyone has a 60D X on order and wants to change it to a 75D now before its made we can upgrade for an extra £7800 ok so I did some basic maths. original base buy price £64100 + £2200 for air suspension (SAS is now built into cost price of all cars) so £66300 I can pay £7800 extra and get the 75D for £74100 , he didn't specify and I will ask for qualification of the price to upgrade after taking delivery but the base price right now of a 75D X is £82000 which is a huge £7900 more and that's not taking into account any extra penalty if you purchase after delivery. I will get the accurate figure tomorrow once he responds to my email but I would expect it to be an extra £16700 which I cant see myself paying. So I think I need to have a serious discussion with my wife tonight as those numbers make not buying the upgrade pointless as you will almost pay double later if you leave it. I will get the confirmation from Tesla on the after sale upgrade price tomorrow but if you are buying a 60D X and had planned to upgrade later then you really need to take this into consideration I certainly am.