Not in the US, all Tesla vehicles ordered before January 15th of 2017 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.
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
* ...
"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.
It used to be unlimited supercharging. The assumption was that people would primarily charge at home, and use the supercharger only for long distance travelling.
It seems that in practice far too many people were using the supercharger as the only place to charge their vehicle, with a fair number of people using it for commercial purposes.
The Tesla Taxis at Schipol Airport in Amsterdam were apparently all using the supercharger facility, rather than setting up their own charging infrastructure.
Also, it wasn't, technically, 'free' - a supercharger fee was charged either on purchase of the car or afterwards.