原本在今年1月15号以后订车(Model S or Model X)的车主无法享有超充免费的功能
只有一年400kWh的免费额度，超过则必须付费
但现在Tesla把超充免费这项优惠扩及到现任所有车主
也就是就算是今年1/15以后才订车的车主，也能享有超充免费的优惠
而这优惠是跟着车主的
也就是说以后车主升级换车(但不包括Model 3)，仍然可以保有超充免费的优惠
但是卖掉的二手车就不能再有超充免费的优惠了
唯一的例外是1/15号之前生产的Model S/X
这些车就算变成了二手车也同样会有超充免费的优惠
而对于现在才想要购入Tesla Model S/X的准车主，只要跟现任车主索取推荐码
就能够享有超充免费的优惠(再加上1000美元的折价)
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来源：
https://electrek.co/2017/05/20/tesla-new-supercharger-model-s-model-x/
After the changes to both the Supercharger access structure and the
referral program today, it can be difficult to understand the current
situation around the access to Tesla’s fast-charging network. There were
a lot of questions in the comment section of our last article about it.
We reached out to Tesla to get the best understanding that we can in
order to break it down to you as simply as possible in this post.
First off, the pay-per-use model introduced earlier this year with 400
kWh in free Supercharger credit per year is still the default model for
accessing the Supercharger network for all new vehicles being purchased
today onward.
For owners with vehicles ordered before January 15, 2017, nothing changes
for their vehicles and they are still on the original Supercharger access
program with free Supercharger for the life of the vehicles.
What changes for vehicles ordered after January 15, 2017, is that they
are now not only off of the paid model with 400 kWh in free Supercharger
credit per year, but they have now free Supercharging access for the life
of their Tesla Model S or Model X ownership – meaning that unlike the
original free Supercharger access model, the free access is associated
with the owner instead of the vehicle.
In other words, a Tesla Model S or X owner who bought a new car since
January 15, 2017, has free Supercharger access now and for any other
Model S or X (not Model 3) that they decide to buy in the future. If they
do decide to upgrade in the future, their current vehicle wouldn’t have
free Supercharger access for the new owner.
It’s a way for Tesla to maintain the free access program while making
sure that it doesn’t become unsustainable due to the growing pre-owned
Tesla fleet.
Pre-owned vehicles produced before January 15, 2017, are still listed
with “free Supercharging” and can be purchased right now, but future
used Tesla vehicles will not have this advantage even if the original
owners will actually have had access to Superchargers for free.
So that covers all current owners. They now all fall under the new
category of free Supercharger access associated with the owner instead of
the vehicle, while the vehicles ordered before January 15 have free
access regardless of the owner.
As for new owners purchasing a new vehicle now and who haven’t purchased
a Tesla before, the default model is the pay-per-use model with 400 kWh
in free Supercharger credit per year as previously mentioned, but Tesla
also updated the referral programs to include free access to the
Supercharger network under the model associated with the owner instead of
the vehicle.
Therefore, as long as new Model S or X buyers use a referral code, they
can still get free Supercharging (on top of the usual $1,000 referral
discount).
I hope this clarifies the situation.