The S6’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Charger SRT doesn’t offer pre-crash pretensioners.
The S6 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Charger SRT doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
The S6 has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Charger SRT doesn’t offer all-wheel drive.
An active infrared night vision system optional on the S6 Prestige helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera and near-infrared lights to detect heat, the system then projects the image on the windshield, near the driver’s line of sight. The Charger SRT doesn’t offer a night vision system.
The S6 offers an optional Top and Corner View Cameras to allow the driver to see objects all around the vehicle on a screen. The Charger SRT only offers a rear monitor and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the front or sides.
Both the S6 and the Charger SRT have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, rear cross-path warning, available crash mitigating brakes and lane departure warning systems.
For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and with its optional front crash prevention system, the Insurance Institute for Highway Safety grants the S6 its highest rating: “Top Pick Plus” for 2016, a rating granted to only 90 vehicles tested by the IIHS. The Charger SRT has not been tested, yet.
The S6 comes with a full 4 year/50,000 mile basic warranty, which covers the entire car and includes 24 hour roadside assistance. The Charger SRT’s 3 year/36,000 mile basic warranty expires 1 year and 14,000 miles sooner.
The S6’s corrosion warranty is 7 years and unlimited miles longer than the Charger SRT’s (12/unlimited vs. 5/60,000).
For smoother operation, better efficiency and fewer moving parts, the S6 has an overhead cam design, rather than the old pushrod design of the engines in the Charger SRT.
J.D. Power and Associates’ 2016 Initial Quality Study of new car owners surveyed provide the statistics that show that Audi vehicles are better in initial quality than Dodge vehicles. J.D. Power ranks Audi 14th in initial quality. With 7 more problems per 100 vehicles, Dodge is ranked 21st.
J.D. Power and Associates’ 2016 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Dodge vehicles. J.D. Power ranks Audi 11th in reliability, above the industry average. With 74 more problems per 100 vehicles, Dodge is ranked 32nd.
On the EPA test cycle the S6 gets better fuel mileage than the Charger SRT 392 (18 city/27 hwy vs. 15 city/25 hwy). The S6 gets better fuel mileage than the Charger SRT Hellcat (18 city/27 hwy vs. 13 city/22 hwy).
In heavy traffic or at stoplights the S6’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The Charger SRT doesn’t offer an automatic engine start/stop system.
The S6 has 1.3 gallons more fuel capacity than the Charger SRT (19.8 vs. 18.5 gallons), for longer range between fill-ups.
For better stopping power the S6’s brake rotors are larger than those on the Charger SRT:
The S6’s optional tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the Charger SRT’s 40 series tires.
The S6 has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the Charger SRT, it requires you to depend on roadside assistance and your vehicle will have to be towed.
The front and rear suspension of the S6 uses air springs for a smoother, controlled ride than the Charger SRT, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.
The S6 has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The S6’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The Charger SRT doesn’t offer a load leveling suspension.
The S6 is 6.4 inches shorter than the Charger SRT, making the S6 easier to handle, maneuver and park in tight spaces.
The design of the Audi S6 amounts to more than styling. The S6 has an aerodynamic coefficient of drag of .29 Cd. That is significantly lower than the Charger SRT (.335) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the S6 get better fuel mileage.
The S6 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Charger SRT doesn’t offer active noise cancellation.
With its sedan body style, locking rear seatbacks and remote trunk release lockout, the S6 offers cargo security. The Charger SRT’s non-lockable folding seat and non-lockable remote release defeat cargo security.
To make loading and unloading groceries and cargo easier when your hands are full, the S6’s trunk can be opened just by holding your hand near the emblem on the trunk, leaving your hands completely free. The S6 also Prestige has a standard power trunk, which opens and closes automatically by pressing a button. The Charger SRT doesn’t offer a power or hands-free opening trunk.
Unlike the driver-only memory system in the Charger SRT, the S6 offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle and climate settings and the front passenger seat also adjusts to the new passenger’s preset preferences.
The S6 offers an optional heads-up display which projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Charger SRT doesn’t offer a heads-up display.
The S6’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Charger SRT’s rear power window switches have to be held the entire time to open or close them fully.
If the windows are left down on the S6 the driver can raise them all using the key in the outside lock cylinder; on a hot day the driver can lower the windows. The driver of the Charger SRT can only raise the windows from inside the vehicle, with the ignition on.
The S6’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Charger SRT’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.
To help drivers avoid possible obstacles, the S6 has standard cornering lights to illuminate around corners when the turn signals are activated. The Charger SRT doesn’t offer cornering lights. The S6 also has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.
A power rear sunshade is optional in the S6 to help block heat and glare for the rear passengers. The Charger SRT doesn’t offer a rear sunshade.
The S6 was chosen as one of Car and Driver’s “Top Ten” for 5 of the last 17 years. The Charger SRT has never been a Car and Driver “Top Ten” pick.