Certified Benz & Beemer Compares 2015 BMW 6 SERIES VS 2015 Jaguar XK Near Scottsdale, AZ

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2015 Jaguar XK

Safety Comparison

The 6 Series’ front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The XK doesn’t offer pre-crash pretensioners.

The 6 Series offers optional City Collision Mitigation, which use 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 XK offers an available collision warning system without the automated brake feature that would prevent or reduce the collision if the driver fails to react.

The 6 Series offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The XK doesn’t offer all-wheel drive.

A passive infrared night vision system optional on the 6 Series helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The XK doesn’t offer a night vision system.

The 6 Series’ optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. The XK doesn’t offer a lane departure warning system.

The 6 Series offers an optional Side and Top View Cameras to allow the driver to see objects all around the vehicle on a screen. The XK only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

The 6 Series’ optional blind spot warning system uses digital cameras monitored by computer to alert the driver to moving objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. The XK doesn’t offer a system to reveal objects in the driver’s blind spots.

Compared to metal, the 6 Series’ plastic fuel tank can withstand harder, more intrusive impacts without leaking; this decreases the possibility of fire. The Jaguar XK has a metal gas tank.

The 6 Series has standard BMW Assist, which uses a global positioning satellite (GPS) receiver and a cellular system to remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The XK doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

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

Warranty Comparison

The 6 Series’ corrosion warranty is 6 years longer than the XK’s (12 vs. 6 years).

BMW pays for scheduled maintenance on the 6 Series for 4 years and 50,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Jaguar only pays for the first scheduled maintenance visit on the XK.

There are over 2 times as many BMW dealers as there are Jaguar dealers, which makes it much easier should you ever need service under the 6 Series’ warranty.

Reliability Comparison

To reliably power the ignition and other systems and to recharge the battery, the 6 Series has a standard 210-amp alternator. The XK’s 130-amp alternator isn’t as powerful.

The battery on the 6 Series is in the trunk, which protects it from hot underhood temperatures, which can degrade battery life. By keeping the 6 Series’ battery 20 to 30 degrees cooler, its life is increased by years. The XK’s battery is in the hot engine compartment.

J.D. Power and Associates rated the 6 Series third among midsize premium sporty cars in their 2013 Initial Quality Study. The XK isn’t in the top three in its category.

J.D. Power and Associates’ 2014 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Jaguar vehicles. J.D. Power ranks BMW 11th in reliability. With 2 more problems per 100 vehicles, Jaguar is ranked 13th.

Engine Comparison

The 6 Series has more powerful engines than the XK:


650i 4.4 turbo V8

445 HP

M6 4.4 turbo V8

560 HP

M6 Competition Package 4.4 turbo V8

575 HP

XK 5.0 DOHC V8

385 HP

XKR 5.0 supercharged V8

510 HP

XKR-S 5.0 supercharged V8

550 HP

As tested in Motor Trend the M6 4.4 turbo V8 is faster than the XKR-S 5.0 supercharged V8 (automatics tested):

6 Series


Zero to 60 MPH

3.9 sec

4.2 sec

Quarter Mile

12.3 sec

12.5 sec

Fuel Economy and Range Comparison

On the EPA test cycle the 6 Series gets better fuel mileage than the XK:

6 Series



3.0 turbo 6 cyl./8-spd Auto

21 city/32 hwy

16 city/24 hwy

5.0 V8/Auto

3.0 turbo 6 cyl./8-spd Auto (Conv)

20 city/31 hwy

16 city/22 hwy

5.0 V8/Auto

4.4 twin turbo V8 (445 HP)/8-spd Auto

17 city/25 hwy

15 city/22 hwy

5.0 S.C. V8 (510 HP)


3.0 turbo 6 cyl./8-spd Auto

20 city/29 hwy


Regenerative brakes improve the 6 Series’ fuel efficiency by converting inertia back into energy instead of wasting it. The XK doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the 6 Series’ 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 XK doesn’t offer an automatic engine start/stop system.

The 6 Series’ standard fuel tank has 2.4 gallons more fuel capacity than the XK (18.5 vs. 16.1 gallons), for longer range between fill-ups. The 6 Series M6’s standard fuel tank has 5 gallons more fuel capacity than the XK (21.1 vs. 16.1 gallons).

Brakes and Stopping Comparison

For better stopping power the M6 Carbon Brakes’ brake rotors are larger than those on the XK:

M6 Carbon Brakes



Front Rotors

16.1 inches

14 inches

15.7 inches

Rear Rotors

15.6 inches

12.8 inches

15 inches

The 6 Series stops shorter than the XK:

6 Series


60 to 0 MPH

105 feet

106 feet

Motor Trend

Tires and Wheels Comparison

For better traction, the M6’s front tires are larger than the largest tires available on the XK (F:265/40R19 & R:295/35R19 vs. F:255/35R20 & R:295/30R20).

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the 6 Series can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The XK doesn’t offer run-flat tires.

Suspension and Handling Comparison

The 6 Series has standard front and rear gas-charged shocks for better control over choppy roads. The XK’s suspension doesn’t offer gas-charged shocks.

The 6 Series offers an available active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Jaguar doesn’t offer an active suspension on the XK.

For a smoother ride and more stable handling, the 6 Series’ wheelbase is longer than on the XK:

6 Series



112.4 inches

108.3 inches


112.2 inches

108.3 inches

For better handling and stability, the average track (width between the wheels) on the 6 Series is 1.9 inches wider in the front and 1.5 inches wider in the rear than the average track on the XK.

The 650i Coupe handles at .94 G’s, while the XK Coupe pulls only .89 G’s of cornering force in a Road & Track skidpad test.

The M6 Convertible handles at .94 G’s, while the XK Convertible pulls only .87 G’s of cornering force in a Car and Driver skidpad test.

Chassis Comparison

The design of the BMW 6 Series amounts to more than styling. The 6 Series offers aerodynamic coefficients of drag from .3 to .32 Cd (depending on bodystyle and options). That is lower than the XK (.33 to .35). A more efficient exterior helps the 6 Series go faster and keeps the interior quieter. It also helps the 6 Series get better fuel mileage.

As tested by Car and Driver while cruising at 70 MPH, the interior of the M6 Convertible is quieter than the XKR-S Convertible (71 vs. 76 dB).

Passenger Space Comparison

The 6 Series Coupe has 2.6 inches more front headroom, .3 inches more front shoulder room, 5.5 inches more rear headroom, 2.9 inches more rear legroom and 7.3 inches more rear shoulder room than the XK Coupe.

The 6 Series Convertible has 2.5 inches more front headroom, .3 inches more front shoulder room, 3.4 inches more rear headroom, 2.9 inches more rear legroom and 7.2 inches more rear shoulder room than the XK Convertible.

Cargo Capacity Comparison

The 6 Series Coupe has a much larger trunk than the XK Coupe (13 vs. 11.7 cubic feet).

The 6 Series Convertible has a much larger trunk with its top down than the XK Convertible with its top down (10.6 vs. 7.1 cubic feet). The 6 Series Convertible has a much larger trunk with its top up than the XK Convertible with its top up (12.4 vs. 11.1 cubic feet).

Ergonomics Comparison

The 6 Series offers an optional heads-up display which projects speed and other key instrumentation readouts onto the windshield, allowing drivers to view information without diverting their eyes from the road. The XK doesn’t offer a heads-up display.

The 6 Series’ 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 XK’s rear power window switches have to be held the entire time to open or close them fully.

In case of a sudden change of weather, the 6 Series has a standard remote convertible top that can be raised from a distance to protect the interior of the vehicle from damage. The XK doesn’t offer a remote top, so the driver will have to run to the car, get in, turn the ignition on and raise the top to prevent the interior from being damaged.

Heated windshield washer nozzles are standard on the 6 Series to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The XK doesn’t offer heated windshield washer nozzles.

While driving with high beams on, sensitive light sensors available for the 6 Series detect other vehicles which could be blinded and automatically switch to low beams. The XK doesn’t offer automatic dimming high beams.

A power rear sunshade is optional in the 6 Series Coupe to help block heat and glare for the rear passengers. The XK doesn’t offer a rear sunshade.

The 6 Series has a standard center folding armrest for the rear passengers. A center armrest helps make rear passengers more comfortable. The XK doesn’t offer a rear seat center armrest.

For greater rear passenger comfort, the 6 Series has standard rear heat vents to keep rear occupants more comfortable. The XK doesn’t offer rear vents.

The 6 Series’ standard steering wheel mounted cruise control on/off switch is conveniently located with the rest of the cruise controls. The XK’s standard cruise control must be turned on with a hard to find switch on the dashboard.

Standard BMW Apps for the 6 Series allows the driver and passengers access to select programs on their smartphones, including reading text messages aloud, playing internet radio stations, tagging songs to buy them later, following twitter accounts and other connected activities without taking their eyes off the road or their hands from the wheel. The XK doesn’t offer factory integrated smartphone program access.

The 6 Series’ standard GPS navigation system has a real-time traffic update feature that offers alternative routes to automatically bypass traffic problems. (Service available in a limited number of metro areas.) The XK’s navigation system doesn’t offer real-time traffic updates.

With standard voice command, the 6 Series offers the driver hands free control of the radio, cell phone and the navigation computer by simply speaking. The XK doesn’t offer a voice control system.

The 6 Series (except xDrive)’s optional Parking Assistant can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The XK doesn’t offer an automated parking system.

Economic Advantages Comparison

The 6 Series will cost the buyer less in the long run because of its superior resale value. Kiplinger’s estimates that the 6 Series will retain 30% to 31% of its original price after five years, while the XK only retains 25% to 28%.

Intellichoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the BMW 6 Series will be $7656 to $43094 less than for the Jaguar XK.

Recommendations Comparison

The BMW 6 Series outsold the Jaguar XK by over six to one during the 2014 model year.

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