I'm from the SF Bay Area and Dos Toros has the best Bay Area style tacos and burritos in NYC. Add guac (more than a dollar cheaper than chipotle) and their house hot sauce (on everything!)
Open late-night and ridiculously tasty. Get the fish tacos and some limes to squirt on them. Don't fret over eating on the nearby curb. It just means you're a real New yorker.
Hip bar in Williamsburg fully equipped with a taco truck in the back patio area. Carne Asada and carnita tacos are a must! Tacos, the ideal pairing here to any drink of choice.