KBB.com 5-Year Cost to Own Awards. Delivers 19 Highway MPG and 13 City MPG! This INFINITI QX80 boasts a Premium Unleaded V-8 5.6 L/339 engine powering this Automatic transmission. GRAPHITE, SEMI-ANILINE LEATHER-APPOINTED SEATING W/QUILTING, GRAPHITE, LEATHER-APPOINTED SEATS W/STRATFORD BURL TRIM, S55 LITERATURE KIT. This INFINITI QX80 Comes Equipped with These Options Wireless Phone Connectivity, Window Grid Diversity Antenna, Wheels: 20 x 8.0 Aluminum-Alloy, Wheels w/Silver Accents, Voice Activated Dual Zone Front Automatic Air Conditioning, Valet Function, Trunk/Hatch Auto-Latch, Trip Computer, Transmission: 7-Speed Automatic -inc: Adaptive Shift Control (ASC), manual shift mode w/Downshift Rev-Matching, snow and tow modes and Hill Start Assist, Transmission w/Driver Selectable Mode and Oil Cooler.