Certified Benz & Beemer Compares 2008 Jaguar XK VS 2008 BMW 6 Near Scottsdale, AZ

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2008 Jaguar XK

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VS

2008 BMW 6

Safety Comparison

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Both the XK and the 6 Series have standard driver and passenger frontal airbags, front side-impact airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control and electronic stability systems to prevent skidding.

Engine Comparison

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The XKR’s standard 4.2 supercharged V8 produces 30 lbs.-ft. more torque (413 vs. 383) than the M6’s standard 5.0 DOHC V10.

For more instantaneous acceleration and better engine flexibility in any gear, the XK’s engines produce their peak horsepower at lower RPM’s than the 6 Series:

Horsepower

XK8 4.2 DOHC V8

6000 RPM

XKR 4.2 supercharged V8

6000 RPM

650i 4.8 DOHC V8

6300 RPM

M6 5.0 DOHC V10

7750 RPM

Fuel Economy and Range Comparison

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On the EPA test cycle the XK8 gets better fuel mileage than the 650i Auto (16 city/25 hwy vs. 15 city/23 hwy).

Brakes and Stopping Comparison

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For better stopping power the XKR Portfolio’s front brake rotors are larger than those on the 6 Series:

XKR Portfolio

6 Series

M6

Front Rotors

15.75 inches

13.7 inches

14.7 inches

The XK stops shorter than the 6 Series:

XK

6 Series

80 to 0 MPH

204 feet

209 feet

Road & Track

70 to 0 MPH

163 feet

169 feet

Car and Driver

Tires and Wheels Comparison

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For better traction and acceleration, the XK has larger standard rear tires than the 6 Series (255/45R18 vs. 245/45R18).

The XK’s optional 255/35R20 front and 285/30R20 rear tires provide better handling because they have a lower 35 series front and 30 series rear profile (height to width ratio), which provides a stiffer sidewall than the 6 Series’ optional 40 series front and 35 series rear tires.

For better ride, handling and brake cooling the XK offers optional 20-inch wheels. The 6 Series’ largest wheels are only 19 inches.

The XK 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 6 Series, it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed. Some models of the 6 Series don’t even offer run-flats.

Suspension and Handling Comparison

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The XK has a standard continuously variable suspension system. Using sensors on steering angle, speed and other driver inputs, the shocks soften to improve ride, or stiffen when appropriate to aid handling on tricky roads. The 6 Series’ suspension doesn’t offer adjustable shock absorbers.

The XKR Coupe handles at .92 G’s, while the M6 Coupe pulls only .88 G’s of cornering force in a Road & Track skidpad test.

The XK Coupe goes through Road & Track’s slalom 1.7 MPH faster than the 650i Coupe (67.5 vs. 65.8 MPH).

For better maneuverability, the XK’s turning circle is 4.2 feet tighter than the 6 Series’ (33.2 feet vs. 37.4 feet). The XK’s turning circle is 7.8 feet tighter than the 6 Series M6’s (33.2 feet vs. 41 feet).

Chassis Comparison

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As tested by Road & Track, the interior of the XK Coupe is quieter than the M6 Coupe:

XK

6 Series

At idle

46 dB

55 dB

Full-Throttle

73 dB

77 dB

50 MPH Cruising

66 dB

71 dB

70 MPH Cruising

69 dB

71 dB

Passenger Space Comparison

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. RMDYB-MXOUX 162.241.241.35 2019/12/30

The XK Coupe has .6 inches more front headroom, 3.1 inches more front legroom, .2 inches more front shoulder room and 2.1 inches more rear shoulder room than the 6 Series Coupe.

The XK Convertible has .5 inches more front headroom, 3.1 inches more front legroom and .1 inches more front shoulder room than the 6 Series Convertible.

Ergonomics Comparison

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Unlike the driver-only memory system in the 6 Series, the XK has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

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