A charger fitted at home is likely to be 7 kWh. A granny cable will deliver 3 kWh. The fuse will likely need to be upgraded before you have the charge point fitted but that is done for free.
It takes about 6 hours to charge our Soul up from 20% to 80%. Not a problem when you think of the amount of time your car sit on the drive.
@Brydo I was seriously tempted by the xc40, and hope there will be a full EV version, or something similar in the next few years.
Kia Soul 2020 EV