People driving through your country without doing any business in your country can be a serious strain, though. This is particularly an issue in Belgium, which has exactly the right shape to host a lot of through traffic between Netherland and France, which puts a lot of wear on the roads without paying for it.

Belgium has normal speed limits, fortunately, but poorly maintained roads. It wouldn't be unreasonable if through traffic from Netherland and France somehow paid a bit for that.