For enhanced safety, the front and rear seat shoulder belts of the Jaguar XF are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Audi S6 has only front height-adjustable seat belts.
The XF offers an optional Intelligent Emergency Brake, which uses forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The S6 doesn't offer crash mitigation brakes.
Both the XF and the S6 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control and electronic stability systems to prevent skidding.
The XF Supercharged’s standard 5.0 supercharged V8 produces 50 more horsepower (470 vs. 420) and 18 lbs.-ft. more torque (424 vs. 406) than the S6’s 4.0 turbo V8. The XFR’s standard 5.0 supercharged V8 produces 90 more horsepower (510 vs. 420) and 55 lbs.-ft. more torque (461 vs. 406) than the S6’s 4.0 turbo V8.
In heavy traffic or at stoplights the XF V6/V8’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 S6 doesn’t offer an automatic engine start/stop system.
The XF stops shorter than the S6:
XF |
S6 |
||
70 to 0 MPH |
155 feet |
157 feet |
Car and Driver |
The XFR/Supercharged’s 285/30R20 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the S6’s optional 35 series tires.
Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the XF can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The S6 doesn’t offer run-flat tires.
The XFR handles at .89 G’s, while the S6 pulls only .87 G’s of cornering force in a Car and Driver skidpad test.
For better maneuverability, the XF’s turning circle is 1.3 feet tighter than the S6’s (37.7 feet vs. 39 feet).
The Jaguar XF may be more efficient, handle and accelerate better because it weighs about 250 to 750 pounds less than the Audi S6.
As tested by Car and Driver, the interior of the XFR is quieter than the S6:
XF |
S6 |
|
At idle |
44 dB |
44 dB |
Full-Throttle |
75 dB |
78 dB |
70 MPH Cruising |
68 dB |
70 dB |
The XF has .2 inches more front legroom and .1 inches more rear shoulder room than the S6.
The XF has a much larger trunk than the S6 (17.7 vs. 14.1 cubic feet).
In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The XF has standard headlight washers to keep headlight output high. The S6 doesn’t offer headlight washers.
While driving with high beams on, sensitive light sensors available for the XF detect other vehicles which could be blinded and automatically switch to low beams. The S6 doesn’t offer automatic dimming high beams.
© 1991-2016 Advanta-STAR Automotive Research. All rights reserved.
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