@CelloMomOnCars No, I don't think you can say that oil is being displaced at all.
There are at least five times as many cars in the UK now as there were when I was born. They consume much more fuel than a much smaller car population did in the past.
If a quarter of sales are now of electric cars that still leaves 3/4 of them as oil burners, and just the oil burners are being sold at a far higher rate now than was the case when all cars burnt oil but there were far fewer cars in total.
"More cars" will never solve the many problems caused by cars. Those problems can only be solved by drastically reducing the number of cars.
Emissions would genuinely drop over time if car production ceased. We'd see an attrition rate of about 5% per year due to old models being scrapped and emissions would drop accordingly. Roads would slowly empty. None of this will happen if production continues to rise and the manufacturers are allowed to continue to make green claims for new models. They've been making those claims for decades and look where we are now. https://www.aviewfromthecyclepath.com/2017/09/business-as-usual-by-driving-green-car.html @ChrisMayLA6