The Lincoln Aviator’s 400-hp twin-turbo V-6 is among the most powerful standard engines in the mid-size luxury SUV segment. The refined 3.0-liter V-6 works with a smooth-shifting 10-speed automatic transmission to deliver both serene cruising and authoritative acceleration. In place of a more powerful V-8 engine as an option, Lincoln offers a plug-in hybrid model that’s known as the Aviator Grand Touring. Using the same V-6 and 10-speed transmission as the standard Aviator, the Grand Touring adds a 100-hp electric motor and a 13.6-kWh battery.