Yeah from other cities sure it's a lot faster. I guess for the other cities like Bristol and Birmingham, the charge is in many ways kind of brutal.
But for the metropolitan population of London including commuter towns, that is just over 15 million people living there. Nevermind the millions of tourists who visit a year, and with that I would presume it would be an issue if Universal were to receive all of it's visitors via car, I'm guessing that would be a issue for the already congested roads and motorway. Which I assume could justify the charge, cars are advantageous for flexibility, space, but equally motorways like the M25 are already drowning in traffic. I think public transit is going to have to be a big part of this project.