I worked on the technical implementation of one of the London Congestion Charge contracts many years ago. It was a huuuuuuge loss for IBM to implement, but I t

I worked on the technical implementation of one of the London Congestion Charge contracts many years ago. It was a huuuuuuge loss for IBM to implement, but I think their position was "we make a loss here, but then just need to do a search-and-replace for "London" to New York/Paris/Tokyo/Los Angeles and profit!" (I.e. no significant extra development). Suffice to say that didn't happen - it was built with zero customisation in mind. I personally blame it on the insistence that SAP was to be used for processing payments etc.