2013 has the SD card. I sure hope they have ironed it since the last update the dealer did. We had to have it rolled back because it would route correctly and it would just hang. Wish they could make it work more like a stand alone gps, this thing isn't very well put together.
My '12 has one disk for eastern US and one for western US (with some overlapping areas).Thanks for the post. The current version I have is a single disk. Not too sure how that would work.
Have you updated it through TomTom home? Thats how I do mine and it works just fine. Been on numerous trips and never have had an issue with it. I D/L updates about 3 times a year.