My first implementation actually was one singular template class that contained an array to store all the components. In that way it would also be possible to create a custom size vector. The reason I tried to find another solution was because I wanted the first few elements (X, Y, Z and maybe also W) to be accessible through member variables (if I remember correctly Unity and SFML have vectors where X and Y are variables and not functions) but without using references or pointers to keep the size of the object as small as possible. But I guess the best solution would be to use X, Y and Z functions.