Bloody Khan.I don't know why the mad rush to force older vehicles out of cities, except obviously money and a need for vain, vacuous politicians to highlight their green credentials. The less environmentally cars will naturally start rapidly decreasing in numbers as they age and are replaced with cleaner cars. Now they're expanding the zone, they won't stop there. As the take from charging vehicles dwindles, they'll raise the bar and drag newer, cleaner vehicles into the net.
Bristol's Ulezzer zone is only a week old and only covers quite a small, central area - but they're already talking of expanding it. There is no escape in rip off Britain.