River Rock exterior and Sea Salt/Black interior, Series III trim. KEY FEATURES INCLUDE Leather Seats, Third Row Seat, Navigation, 4x4, Quad Bucket Seats. Jeep Series III with River Rock exterior and Sea Salt/Black interior features a Straight 6 Cylinder Engine with 420 HP at 5200 RPM*. OPTION PACKAGES TRANSMISSION: 8-SPEED AUTOMATIC (8HP75) (STD), ENGINE: 3.0L I6 HURRICANE SO TWIN TURBO ESS (STD). AutoCheck One Owner Horsepower calculations based on trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.