This scheme was always bonkers, simply green posturing on the part of the old mayor. It would have led to increased CO2, more congestion and lower income to offset the wildly out of control costs of the Congestion Charge. As well as charging larger vehicles £25, not just Chelsea tractors but many ordinary family cars, the scheme would have involved letting thousands of small A and B category cars into the zone for free.
Now the scheme will stay as it is is. Sensible decision.