And well... I think I may have done something a bit daft.
First thing I did when I receieved the White 3DS XL today was do the system transfer so all my purchases and games from my old 3DS were now on the new XL device... And once it finished I went to go check out Mario Kart 7 of which I am unable to locate.
I went and checked the manual, nothing is mentioned where it is located on the device, so checked the box and in the list of contents it mentions that "4GB SDHC memory card (Pre-Installed: Mario Kart 7)... it seems my hastiness in transferring my stuff has formatted the new XL card and of it's contents!
Did it prompt that it would format? honestly I cannot remember, if it did I feel really daft for not taking my time and checking where the game was pre-loaded first. I have contacted Nintendo Customer Services, but I am not sure what they can do for me, especially if I am at fault and the device did prompt me it would be deleted.
Are there any other VG247 members who are about to/already have upgraded their 3DSs? Have you successfully transferred your data and still have the pre-loaded game?
TL;DR? If you plan to upgrade you 3DS to either the Mario Kart or Super Mario Pre-Loaded White 3DS XL make a backup of your Memory Card(s). :S