So I was in this exact same scenario. Because my main 200A panel is on the opposite side of the house from my garage, it required a 66' run of wire to install a new 240V circuit in the garage for EV charging. I looked into doing this myself and it would be almost $1000 alone for the single run of 4gauge or dual run of 6guage copper wire. Talked to a few electricians about it and one suggested instead of running that much copper... I should run a much cheaper aluminum service wire (SER1/0) and install a new 100A subpanel in the garage. Off that new 100A subpanel, I could then add whatever new EV charging circuits I desired. After brainstorming, this was the most future-proof plan. Even covers me if I decide to get a Cybertruck or Rivian truck next year which is too big to fit inside the garage and will need to charge outside the garage.. I could easily add a 3rd 240V circuit for the truck in the driveway.
So went ahead and paid that electrician to install the 100A subpanel, Gen3 HPWC on my side of the interior garage and a basic 14-50 on the other side of the interior garage. My wife was still driving her ICE 3row SUV, but thinking about going EV. Sure enough about a month ago wife bought the ID.4, she really wanted the Audi Q4.. but the $7,500 tax credit on the 2021 tax year was more important. So just last week I picked up the ChargePoint Home Flex connector because it really is very flexible (comes with 14-50R or 6-50R plug.. but can also be hardwired up to 80A breaker). Now I can charge my Tesla at rates up to 48A.. and her ID.4 at rates up to 40A (48A if hardwired). The CPHF also qualifies for the IRS tax credit because it was purchased & installed before 12/31/21.
We looked at using a second 3rd Gen HPWC and possible load balancing.. also looked at the Gen2 Wall Connector with a permanent J1772 connector and decided against both. The CPHF was easier to immediately install, can charge faster than the Tesla HPWC's, does not require any adapters to charge her J1772, is one of the smart chargers that qualify for the $300 rebate & off-peak cheaper charging rates from our energy provider Pepco. And since the CPHF is a real smart charger and connected to WiFi.. I can monitor/control/schedule charging or even change the amperage using the app or website. We are still figuring out the ID.4, so not really sure if the car has scheduled charging or amperage control.