Parked in the shadow of the 7 train, the Tacos Guicho cart stands apart from other Roosevelt Avenue taco vendors by virtue of the freshness and juiciness of the meat that stuffs their hot, fresh tacos, sopes and tortas. Steak, chicken, carnitas, chorizo—and less familiar meats like tongue—sizzle across their grill deep into the night, feeding fans of their authentic Mexican street food.