Sat Nav (1 Viewer)

[poppys]

I have a Tom Tom XL series 30 1GB ,at the moment I have the standard map plus the French maps installed.I would like to install a map for either HGV,PCV,Caravan or motorhome.
Ive been on the Tom Tom web site and it seems to cost £300 +,is this correct or am I missing something ?:Sad:

 

[poppys]

Surely there must be a download from somewhere I can use on my existing Sat Nav.