20 isn't plenty

[M5Rick]

He's not in central London but the message is just the same if you do drive in Khan's blanket 20mph zone for central London. It doesn't do diesels any good and what about our M5's..

[Neiled]

Even worse here in Wales where the clowns in the Senedd (Welsh Assembly) have replaced the 30mph limits with a blanket 20mph limit