There is only one file to add at the moment, but through 2015/16 we will include new venues and will add any corrections necessary.
In the magazine Disabled Motoring UK, Oct 2014, page 14, Edward Donohoes highlighted some limitations of the new bigger Mercedes Taxis. Although some of the cabin dimensions are bigger that the traditional TX versions, the Mercedes has some problems in accommodating larger electric wheelchairs. Also it does not have a seat which swivels out over the pavement (which is particularly useful for some). The Mercedes is higher off the ground than the TXs, and has less height in the cabin. A chair user may finish up lowering their head towards their chest.