My EV gets about 15kwh/100km average over the whole year (including heating)

That works out to around $2.25 per 100km vs $14.80 for your vehicle at current prices in BC.

That's a savings of over $12k per 100,000 km.

The difference between the gas and EV version of my vehicle was $25k, so anything over 200,000km is saving me money compared to having purchased a gas car. If gas prices go up over the next 10 years, I will save even more.

That being said, you probably shouldn't get rid of a functional gas vehicle until it doesn't work any more or becomes prohibitive to maintain.

Also my EV is fun to drive.