Tacos are ONLY made with corn tortillas. There are other similar foods that can be made with flour tortillas, but not tacos.
Crisp tortillas are almost exclusively an American thing. In Cal-Mex cooking, only one kind of taco is crisp and that is deep fried East L. A. is a cuisine that I am somewhat familiar with, but have not cooked nor particularly studied.
For those of you not familiar with the subgenera of Mexican cuisine, there are distinct qualities in the following groups: Mexican ( in all of it's AZ-Mex are very similar in some ways, but AZ-Mex is also closely related to foods nowadays -- especially outside the border states.
Is a Taco a Greek Doner Kebab 7558
Paul Indeed: Ay caramba! Mexican food on target to outsell Chinese By Louise Barnett Published: 04 June 2005 "Forget the chow mein and pbutt...
Is a Taco a Greek Doner Kebab 7559
Yep - see below. Dimitri THE HISTORY OF THE NACHO BY KAREN HARAM SAN ANTONIO EXPRESS-NEWS A fried tostado. Yellow cheese. A slice of jalapeno. So...
Just in case you wondered, Cal-Mex is a direct descendant from Spanish Rancho cooking with no influence from local Indians and a very late influence from Mexican cooking. The influence of Mexican cooking on Cal-Mex came mostly in the last half of the 20th century with the arrival of large numbers of migrant workers from Mexico. Only in California's Imperial County and farm areas of Southern California and the Central Valley does Cal-Mex have a relationship to AZ-Mex because the Mexican laborers in these areas came from the same areas of Mexico for the most part. These are different than the Mexican influences in New Mexico and Texas. California is similar to Baja California in that new workers have come mostly from Sonora and Jalisco.