Does it matter if another country is spending similar? If it's too much and money is being wasted then whether another country is also doing so is largely irrelevant albeit possibly interesting. I think that there needs to be some accountability to see if the money being spent is value for money and affordable as that is more important.
I don't disagree that the cars/contracts should exist and it may indeed be more economical to have cars and drivers available than it is to use ad hoc transport. Sometimes the cheapest option isn't the one that is value for money. I'd argue in the example above that 14 hours of a staff members time is worth more than an extra £100 etc on the price of a ticket, but maybe the meeting didn't have to be attended at all?
We work a lot with offshore so you learn pretty quickly to carry out even very important meetings by teleconference or video conference. Is it ideal? Probably not always, it's good to be there in person sometimes, however there isn't any option other than medium to long haul travel.