How much better will car fuel efficiency be in the future?

If you look at it now, the fuel efficiency of the car is much better than before.

397 2017-04-29 Gentleman

The Ministry of Environment says that if fuel efficiency is less than 20km/L from 2020, sales will not be possible.
So I think it's at least 20 or more.

Gentleman 8 years ago 0

A. 2

If electric cars become popular in the future, I don't think we can measure it with the current fuel efficiency method.

Gentleman 8 years ago 0

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