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EVs are now 9 times cheaper than petrol or diesel to drive in the UK
(www.carbonbrief.org)
This is a most excellent place for technology news and articles.
Sales tax makes sense to cover roads because a lot of the wear and tear on the roads is caused by the trucks that deliver goods. Even if you bike to the store, you are using the roads in that way.
Cars sitting in the garage have less impact than cars on the road though.
With tolls you can be more targeted. A road in a city has more cost (land and maintenance) and greater externalities (negatively impacts more people)