Is £25 disproportionate?
As far as the new congestion charge goes, whether or not £25 is disproportionate depends on what you’re standing your Porsche Cayenne up against. It probably is disproportionate if you’re comparing it to a Ford Focus ST2, kicking out 224 g/km of carbon emissions (congestion charge £8) against your 378 g/km and £25 charge. But if you’re comparing what the driver might be able to afford (£11,945 - £20,595 for the Ford), then it’s probably very reasonable. After all if you’re the kind of person who can comfortably spend £37,100 - £74,650 on a small tank for a crowded city then the Band G congestion charge is going to be less than the cost of a couple of packets of biscuits from your favourite deli.