Since the 2017 model year, Nissan has served the North American market with the Armada as its full-size SUV offering. Big, athletic, and fueled with a muscular engine, the Nissan Armada roars into 2021 with several tweaks. There’s more standard tech, the engine gets an output upgrade, and the styling has been refreshed. On one end of the Armada’s trim level spectrum is the SV; at the other, it’s the range-topping Platinum. Regardless of trim, the 2021 Nissan Armada has a 5.6-liter V8 under its hood. Nowadays, this engine churns out 400 horsepower and 413 lb-ft of torque.