Obviously no gas engines when there are no gas stations. In 2013 I argued that each percentage of vehicle sales that EVs take away from gas engines is a percent that will not be maintaining the gas engine infrastructure, and that loss of infrastructure support may make a difference in the near future in some places.
Norwegians are currently buying EVs for about 15% of vehicle sales (admittedly with a lot of incentives that may be gradually reduced). Obviously the existing vehicle fleet composition is different from the new vehicle fleet. Per the video above, a gas engine car bought 20 years from now could still be around 20 years later. Still I think the correct reference for when the gas infrastructure will start becoming spotty and inconvenient uses the percentage of vehicle miles traveled in a given time done by EV. People with two cars generally drive more with the newer one, and with electricity always costing less than gas, it will make sense for people to choose their EV when they can. That 15% will translate into 15% less gas revenue, not today but soon, and gas stations are going to notice it. If I were a young businessperson in Oslo today, I don't think I'd view a gas station as an attractive long term investment.
I don't expect range anxiety for gas vehicles so much as range annoyance as they have to go further and plan more to refill their cars. Mechanics and the rest of the infrastructure that support gas cars will also be less common and more expensive.
The above is obviously true at some large percentage of vehicle miles coming from EVs, the question is whether it can and will happen anytime soon at some smaller percent, say 10%. We could see that in Oslo in 5-10 years.
And FWIW, I don't think gas stations will completely disappear everywhere. There will be some vintage/hobby cars tooling around, maybe retrofitted to run biodiesel or other biofuels, and there will be some businesses that service them.
