The 2018 Lincoln Navigator L is the extended-length version of Lincoln's Navigator full-size luxury SUV. As part of the model's fourth generation, it's powered by a twin-turbocharged 3.5-liter V6 that produces 450 horsepower, paired with a smooth-shifting 10-speed automatic transmission. There are four trim levels available: Premiere, Select, Reserve, and Black Label, with four-wheel drive available. Its interior is luxurious with high-quality materials, a 10-inch touchscreen for infotainment with both Apple CarPlay and Android Auto, and an optional 20-speaker Revel Ultima audio system. Safety features include forward collision warning with automatic emergency braking, lane keeping assist, and blind-spot monitoring. The L model offers superior cargo space thanks to its extended length.