I'm not sure if this had been mentioned/noticed previously (I did a quick search). For the few 40kWh owners out there; I confirmed with Tesla that there no longer appears to be a restriction on S40 owners enabling CHAdeMO. One does have to pay $1,900 for DC Fast Onboard Hardware Activation in addition to the $450 adapter. I'm not sure when this change was made effective. I believe previously, 40 owners had to enable/upgrade to a 60 ($11,000), then activate SuperCharging ($2500) or DC Fast Charging.