I just saw this supposedly controversial Burger King ad for the Texican Whopper while in Madrid (yes, I watch lots of TV on vacation just like in real life, but Rock Star and Ghost Whisperer are learning experiences when en español) and didn't realize is was specifically a Spanish product. I assumed it was a silly American-made commercial. It's not terribly offensive unless I'm missing something, though I've never been the most culturally sensitive person. I'm certainly not alone; read a real Texican's perspective on Guanabee.
I'm not sure about the Texican Whopper but if time had permitted, we would've tried the "gourmet" ciabatta-based McDonald's burger being advertised like crazy (but not so advertised that I can remember the product name). Cheddar and emmental? Nuts.
On the fast food track, I was shocked and excited by the presence of Guatemalan fried chicken chain, Pollo Campero, in Madrid. We planned to stop by after seeing Watchmen (really not my thing but it surely beat Hotel Para Perros) but post-midnight on a Sunday is slim pickings (I still don't get Madrid's reputation for being a night city—bars close at 2am) and the gates were already down. Instead, we opted for Vips, the only nearby eatery still serving, and I ordered a strangely charred yet not fully cooked quesadilla with salsa so mild it verged on tomato puree. That was sort of Texican-inspired, now that I think about it.
I swear we had a chain along the Oregon Coast in the '80s called Vips that had a rabbit mascot. Could it possibly be the same company?