Used 2017 Audi A8 Sedan Trims Comparison

The 3.0T is equipped with 19-inch wheels, LED headlights and taillights, sport-style bumpers and side sills, a sunroof, dual-pane acoustic glass, heated and power-folding exterior mirrors, auto-dimming mirrors, front and rear parking sensors, power door closers, a power trunklid (with a foot sensor for keyless access), an adaptive air suspension, keyless entry and ignition, four-zone automatic climate control, leather upholstery (with extended leather on the doors, dash and console), 14-way power-adjustable and heated front seats (with four-way power lumbar), front seat memory functions, a power-adjustable steering wheel, wood interior trim and power sunshades for both the rear glass and rear side windows.

Standard electronic features on the 3.0T include in-car 4G LTE Wi-Fi, an 8-inch display screen, Bluetooth phone and audio connectivity, Audi's MMI infotainment interface, a navigation system, voice controls, a rearview camera and a 14-speaker Bose surround-sound audio system with a CD/DVD player, Audi's proprietary digital music port with a Lightning cable (but no USB ports) and satellite radio.

The 4.0T Sport adds 20-inch wheels, additional sport-themed styling tweaks, a panoramic sunroof, diamond-stitched leather upholstery with a simulated suede headliner, 18-way multicontour front seats (with four-way lumbar, ventilation and massage), a heated steering wheel, heated rear seats, a rear cargo pass-through, side- and top-view cameras, a blind-spot monitoring system, a head-up display and interior active noise cancellation.

The Executive package for the 3.0T bundles most of the upgraded amenities from the 4.0T Sport, and it continues to be offered as a credit option for the 2017 model year. The Rear Seat Comfort package provides front-passenger seat adjustment from the rear compartment and power rear outboard seats with power lumbar and ventilation. The Driver Assistance package includes adaptive cruise control, a frontal collision warning system (Audi Pre Sense Plus), lane keeping assist and automatic high-beam control.

Numerous wheel designs are also available. Furthermore, you can order up a sport rear differential that improves handling (it's part of the Dynamic package that includes variable-ratio steering). Other notable add-ons include a Black Optic appearance package and, on the 4.0T Sport only, a night vision system, a rear-seat entertainment system (with dual 10-inch screens) and a 19-speaker Bang & Olufsen surround-sound audio system.

All A8 models come with all-wheel drive and an eight-speed automatic transmission. The 2017 A8 3.0T is motivated by a supercharged 3.0-liter V6 engine that produces 333 horsepower and 325 pound-feet of torque. In Edmunds testing, this model reached 60 mph in an impressive 5.3 seconds.

As capable as the base V6 engine is, we're suckers for the seemingly endless power and torque of the 4.0T Sport's V8.

The 2017 Audi A8 4.0T Sport receives a turbocharged 4.0-liter V8 engine that makes 450 hp and 444 lb-ft of torque. In our testing, an earlier 2013 A8 4.0T with 30 fewer horsepower sprinted to 60 mph in just 4.2 seconds.