[xallace]

Obvious improvements for traffic in terms of aerodynamics: * Get rid of side mirrors (legislation is the biggest challenge here) * Adaptive body elements * Less powered cars (less powered >> less need for removing the heat >> better aerodynamics) * disincentivize SUVs

[Zanni]

I hope you mean "replace the side mirrors." People are bad enough about head checks as it is. And replace them with what? Sensors? Cameras?