We could make the road out of interlocking hexagonal solar panels

This was done as you probably know [1] but it's not clear that the road surface is a good place for solar panels. They get dirty and damaged. It's certainly orthogonal to charging vehicles on the road, given we know how to transmit power already.

[1] https://www.google.com/amp/s/www.theverge.com/platform/amp/2...

Indeed [2]

BTW when searching on Google it is quite obnoxious that it doesn't navigate to the actual URL but instead prefixes it with Google..

[2] https://www.google.com/amp/s/www.businessinsider.com/first-s...

Are you saying charge vehicles on the road using i.e. inductors underneath the road?