The substantial, environmentally-focused electric vehicles have now taken over British roads, resulting in significant potholes and ruts appearing that make driving dangerous.

Road tax should be determined by a vehicle’s mass, since this factor causes damage to road surfaces, not engine capacity or acquisition cost, as these elements have no connection to road wear.

On the subject of those emission-reducing speed restrictions on the motorway, I think motorists should use the accelerator more forcefully, because reduced speeds actually produce greater pollution, as shown by the stifling 50mph limit on the M4 close to Newport and the relatively cleaner atmosphere on both sides of it where cars can travel at optimal speeds in higher gears as intended, making them more economical and cheaper to run.

Roland Granville,

Caerleon.