Certified Benz & Beemer Compares 2011 Jaguar XJ VS 2011 BMW 7 Near Scottsdale, AZ

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2011 Jaguar XJ

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VS

2011 BMW 7

Safety Comparison

For enhanced safety, the front and rear seat shoulder belts of the Jaguar XJ have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The BMW 7 Series doesn’t offer pretensioners for the rear seat belts.

The XJ offers optional crash mitigation brakes, which use forward mounted sensors to detect an immediately impending crash and automatically apply the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The 7 Series doesn't offer crash mitigation brakes.

Both the XJ and the 7 Series have standard driver and passenger frontal airbags, front side-impact airbags, head airbags, plastic fuel tanks, four wheel antilock brakes, traction control and electronic stability systems to prevent skidding.

Warranty Comparison

The XJ comes with a full 5 year/50,000 mile basic warranty, which covers the entire car and includes 24 hour roadside assistance. The 7 Series’ 4 year/50,000 mile basic warranty expires 1 year sooner.

Jaguar pays for scheduled maintenance on the XJ for 1 year longer than BMW pays for maintenance for the 7 Series (5/50,000 vs. 4/50,000).

Engine Comparison

The XJ has more powerful engines than the 7 Series:

Horsepower

Torque

XJ 5.0 DOHC V8

385 HP

380 lbs.-ft.

XJ Supercharged 5.0 V8

470 HP

424 lbs.-ft.

XJ SUPERSPORT 5.0 supercharged V8

510 HP

461 lbs.-ft.

740 3.0 turbo 6 cyl.

315 HP

330 lbs.-ft.

750 4.4 turbo V8

400 HP

450 lbs.-ft.

Active Hybrid 750 4.4 turbo V8 hybrid

455 HP

515 lbs.-ft.

Alpina B7 4.4 turbo V8

500 HP

515 lbs.-ft.

As tested in Motor Trend the XJ Supercharged is faster than the 750i:

XJ

7 Series

Zero to 60 MPH

4 sec

4.9 sec

Quarter Mile

12.3 sec

13.4 sec

Speed in 1/4 Mile

116.3 MPH

105.7 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the XJ gets better fuel mileage than the 7 Series:

XJ

7 Series

V8/Auto

16 city/23 hwy

15 city/22 hwy

750i

Supercharged V8/Auto

15 city/22 hwy

13 city/19 hwy

760Li

SUPERSPORT/Auto

15 city/21 hwy

n/a

Brakes and Stopping Comparison

For better stopping power the XJ’s brake rotors are larger than those on the 7 Series:

XJ

740

750/760

Front Rotors

15 inches

13.7 inches

14.7 inches

Rear Rotors

14.8 inches

13.6 inches

14.6 inches

The XJ stops much shorter than the 7 Series:

XJ

7 Series

80 to 0 MPH

202 feet

210 feet

Road & Track

70 to 0 MPH

159 feet

171 feet

Car and Driver

60 to 0 MPH

110 feet

115 feet

Motor Trend

Tires and Wheels Comparison

For better traction and acceleration, the XJ has larger rear tires than the 7 Series (275/40R19 vs. 245/50R18).

The XJ’s standard 245/45R19 front and 275/40R19 rear tires provide better handling because they have a lower 45 series front and 40 series rear profile (height to width ratio) that provides a stiffer sidewall than the 7 Series’ standard 50 series tires. The XJ’s optional 245/40R20 front and 275/35R20 rear tires have a lower 40 series front and 35 series rear profile than the 7 Series’ optional 45 series front and 40 series rear tires.

For better ride, handling and brake cooling the XJ has standard 19 inch wheels. Smaller 18 inch wheels are standard on the 7 Series.

The XJ 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 7 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.

Suspension and Handling Comparison

The rear suspension of the XJ uses air springs for a smoother, controlled ride than the 750i, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The XJ Supercharged handles at .87 G’s, while the 750Li pulls only .82 G’s of cornering force in a Car and Driver skidpad test.

The XJL Supercharged executes Motor Trend’s “Figure Eight” maneuver quicker than the 750Li (26 seconds @ .71 average G’s vs. 26.2 seconds @ .7 average G’s).

Chassis Comparison

The Jaguar XJ may be more efficient, handle and accelerate better because it weighs about 300 to 700 pounds less than the BMW 7 Series.

The design of the Jaguar XJ amounts to more than styling. The XJ has an aerodynamic coefficient of drag of .29 Cd. That is lower than the 7 Series (.3 to .32) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the XJ get better fuel mileage.

As tested by Road & Track while at idle, the interior of the XJL Supercharged is quieter than the 750i (47 vs. 51 dB).

Passenger Space Comparison

The XJL has .3 inches more front legroom and 5.7 inches more rear legroom than the 7 Series SWB.

Cargo Capacity Comparison

The XJL has a much larger trunk than the 7 Series SWB (15.2 vs. 14 cubic feet).

Ergonomics Comparison

The XJ’s standard air conditioned front seats cool the driver and front passenger and help take the sting out of hot leather in Summer. Air conditioned front seats costs extra on the 7 Series.

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