This purple carriage is from a set that is exclusive to Target. The set came with Shine Bright Luna, and a Pinkie Pie with tinsel hair (and lots of accessories). You can't find it in Europe as far as I know (I live in Europe), but it is something that was easy to find in the US a year or so ago. Oh yes, forgot to mention it was probably called "Canterlot Castle" or something close, and came with a cute cardboard castle.
The set at the bottom is another set from the Canterlot series available only at Target. A while after they had started selling the set at Target only, other countries began selling the set.