That's still 7 further paying years to wait until the gta is exempt, 14 years until the spider is exempt and 20 years until the Clio is exempt. Roll on 2043 lol will come round quicker than you think. I don't think so...
That's only £91,250 potential extra tax for the Clio without increase or double or triple that 2 miles up the road. Bargain

Congestion charge residents get a permanent 90% discount forever not just 3 years.
Also what about visitors? There will likely be none if they have to pay.