As a Texan, I've always loved Whataburger. I would say it is the best fast food hamburger you can get. I almost alked about this on my recent Top Houston Burgers article.
So when I saw Wannaburger on The Royal Mile in Edinburgh, I had to stop and laugh.
There was no way I was traveling all the way to Scotland and eating a fast food burger so I cannot vouch for Wannaburger, but you have to agree it looks similar to our Whataburger.