Just a FYI,
I went last fall to a trailer hitch dealer here in Quebec , Canada to have a removable trailer hitch installed for 350$ , including all lighting harnesses.
Test drove my 2014 Spark with a 4 x 8 trailer full of wood , and lost only 30% capacity on the ride.
What an amazing little...
It was done three or four times here in Quebec by an independant EV car repair shop. With original GM parts.
Takes 12 hours, and 2200$ Canadian dollars.
Cheers,
Jean-Francois
Not possible on the Spark from what we have seen with the DC Fast Charge port Upgrade. The contacts leading to the battery would not withstand that current... It is sad that they have not oversized these DC bus bars.