It turns out Sofia Vergara has a niece, Claudia Vergara, who is basically a mini version of Sofia. The Colombian actress's niece is 26 years old, also hails from Colombia, and also looks a whole bunch like Sofia. Little is known about Claudia, other than she frequents LA and appears to have carefree lifestyle. Her Twitter bio indicates she used to be a founder and designer of a clothing line called "Violetta Rose," though it appears it no longer exists.
Here is Claudia in some glamor shots of her own:
And here she is with Aunt Sofia:
Sofia has even calls her "mini me":
If nothing else, Claudia could do some stand-in acting work for Sofia. But she probably has a decent shot at the family business of modeling too.