Arrange six tomatoes cut side down on a 15x10x1-in. baking pan; drizzle with 1 tablespoon oil. Broil 4 in. from the heat until skin blisters, about 4 minutes. Cool slightly; drain well.
In a food processor, process uncooked and roasted tomatoes in batches until chunky. Transfer all to a large bowl.
Place the cilantro, lime juice, garlic, lime zest and remaining oil in the food processor. Cover and process until blended; add to tomatoes. Stir in the peppers, onions, cumin, paprika, chipotle pepper, salt and hot sauce. Let stand 1 hour to allow flavors to blend. Serve with chips.
