Can someone tell me what size cakes you think were used to make this carriage cake (by Rossmoor Pastries)? Do you this the main part of the carriage is an 11 x 15?

Thanks very much.

It looks to me as if the carriage, other than the "wheels" was cut out of a large round cake (with the part of the handle that sticks out being cut out of the 'extra' cake and tacked on).

Thanks!