That will be a long long time coming. Gasoline is about 46 MJ/KG or 34 MJ/L. The best lithium-metal batteries are about 2 MJ/KG or 5 MJ/L. The best lithium-ion batteries, about half that. Gasoline is extremely energy dense. For a comparison, TNT is only 5 MJ/KG and 7 MJ/L.

Fortunately, gasoline cars are so inefficient that you only need about 1/3 of the comparable energy in an electric car to move the vehicle. Still a ways to go, but we don't need to get to all the way gasoline energy density for the equivalent range.

ICE efficiency brings that down a decent amount, no? 35-40% at best. The fuel is much more dense, but converting it is not as efficient.

> ICE efficiency brings that down a decent amount, no?

In terms of power to the wheels, yes. Some of that latent energy can be useful, especially after it's converted into heat.

Especially in an older car with a less efficient engine.

Roughly 15-20% during actual driving.

Electric Renault 5 Turbo Maxi

Had to google that https://rmsothebys.com/en/auctions/LF16/London/lots/r113-198...

yeah would be fun

You gotta be euphemistic, the software running the site is precious about certain topics.

(that is, your grandchild comment here done be killed)