> came with free supercharger access.

By no means 'free': there was a $2000 Supercharger access fee included in the purchase price of the S85, or $2500 to enable it after purchase for the S60.

Not available for the S40 variant which wasn't permitted to use the Superchargers.

I am not seeing it. Buying a new S today https://www.tesla.com/models/design offers the following premium options: autopilot - $5k, full self driving - $3k, premium package - $3.5k, smart air suspension - $2.5k, subzero - $1k, hi-fi sound - $2.5k, rear-facing seats - $4k, high-amperage onboard charger - $1.5k.

Everything else is included in the price of the vehicle and is standard https://www.tesla.com/models

Under specs they list

* Access to Tesla's expanding Supercharger network

* Mobile connector with 110 volt, 240 volt, and J1772 adapters

* 17" capacitive touchscreen

* Onboard maps and navigation with free updates for 7 years

* Automatic keyless entry

* ...

It seems that once the S70 was released it was removed as an optional line-item across the range and was bundled into the final price. However owners of suitable non-S40 vehicles from before that point can still enable access for a fee ( they have the hardware already installed, it's a database flag change ).

"If your vehicle is eligible, the Supercharging upgrade option will be visible in the Available Upgrades section."

http://shop.teslamotors.com/products/enable-supercharging

The S40 has the hardware for Supercharging but is excluded by policy.

I'm only aware of this because a friend in the UK has been trying to work-out what's applicable in this market and Tesla's constant changes to the policy makes that difficult.

Even if it's included standard, it's still priced in though, right? Same reason "Buy three tires; get the fourth free" isn't really free.

I guess we'll find out in 3 days after the Great Supercharger Unbundling occurs.

It is "free with your $100k purchase".