Certified Benz & Beemer Compares 2007 Mercedes Benz S-Class VS 2007 BMW 7 Near Phoenix, AZ

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2007 Mercedes Benz S-Class

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VS

2007 BMW 7

Safety Comparison

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For enhanced safety, the front and rear seat shoulder belts of the Mercedes S Class 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 BMW 7 Series has only front height adjustable seat belts.

The S Class S600 has standard Brake Assist Plus, 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. The 7 Series doesn't offer crash-mitigating automatic brakes.

The S550 offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The 7 Series doesn’t offer all-wheel drive.

The Mercedes S Class has Daytime Running Lights to help keep it more visible under all conditions. Canadian government studies show that driving with lights during the day reduces accidents by 11% by making vehicles more conspicuous. The 7 Series doesn’t offer Daytime Running Lights.

An active infrared night vision system optional on the S Class 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 displays the image on a monitor in the dashboard. The 7 Series doesn’t offer a night vision system.

Both the S Class and the 7 Series have standard driver and passenger frontal airbags, front side-impact airbags, head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control and electronic stability systems to prevent skidding.

Engine Comparison

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The S Class has more powerful engines than the 7 Series:

Horsepower

Torque

S550 5.5 DOHC V8

382 HP

391 lbs.-ft.

S600 5.5 turbo V12

510 HP

612 lbs.-ft.

S65 6.0 turbo V12

604 HP

738 lbs.-ft.

750i 4.8 DOHC V8

360 HP

360 lbs.-ft.

760i 6.0 DOHC V12

438 HP

444 lbs.-ft.

As tested in Car and Driver the S550 5.5 DOHC V8 is faster than the 750i 4.8 DOHC V8:

S Class

7 Series

Zero to 60 MPH

5.3 sec

5.4 sec

5 to 60 MPH Rolling Start

5.7 sec

5.9 sec

Quarter Mile

13.7 sec

13.9 sec

As tested in Car and Driver the S600 5.5 turbo V12 is faster than the 760i 6.0 DOHC V12:

S Class

7 Series

Zero to 60 MPH

4.2 sec

5.1 sec

Zero to 100 MPH

9.7 sec

12 sec

5 to 60 MPH Rolling Start

4.6 sec

5.4 sec

Passing 30 to 50 MPH

2.6 sec

3.1 sec

Passing 50 to 70 MPH

2.7 sec

3.4 sec

Quarter Mile

12.6 sec

13.6 sec

Speed in 1/4 Mile

115 MPH

106 MPH

For more instantaneous acceleration and better engine flexibility in any gear, the S Class’ engines produce their peak torque at lower RPM’s than the 7 Series:

Torque

S550 5.5 DOHC V8

2800 RPM

S600 5.5 turbo V12

1800 RPM

S65 6.0 turbo V12

2000 RPM

750i 4.8 DOHC V8

3400 RPM

760i 6.0 DOHC V12

3950 RPM

Brakes and Stopping Comparison

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For better stopping power the S600’s front brake rotors are larger than those on the 7 Series:

S550

S600

7 Series

Front Rotors

13.8 inches

14.2 inches

13.7 inches

The S Class stops much shorter than the 7 Series:

S Class

7 Series

70 to 0 MPH

162 feet

175 feet

Car and Driver

60 to 0 MPH

113 feet

122 feet

Motor Trend

Tires and Wheels Comparison

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For better traction, the S Class has larger standard tires than the 7 Series (255/45R18 vs. 245/50R18). The S Class’ optional front tires are larger than the largest tires available on the 7 Series (F:255/40R19 & R:275/40R19 vs. F:245/45R19 & R:275/40R19).

The S550’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio), which provides a stiffer sidewall than the 7 Series’ standard 50 series tires.

Suspension and Handling Comparison

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The front and rear suspension of the S Class uses air springs for a smoother, controlled ride than the 7 Series, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

For better handling and stability, the track (width between the wheels) on the S Class is 1.1 inches wider in the front and .4 inches wider in the rear than on the 7 Series.

The S550 handles at .85 G’s, while the 750i pulls only .82 G’s of cornering force in a Car and Driver skidpad test.

Chassis Comparison

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The design of the Mercedes S Class amounts to more than styling. The S Class has an aerodynamic coefficient of drag of .26 Cd. That is lower than the 7 Series (.29) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the S Class get better fuel mileage.

As tested by Car and Driver while under full throttle, the interior of the S550 is quieter than the 760Li (69 vs. 71 dB).

Passenger Space Comparison

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The S Class has 5.4 cubic feet more passenger volume than the 7 Series SWB (109.4 vs. 104).

The S Class has .6 inches more front legroom and 5.1 inches more rear legroom than the 7 Series SWB.

Ergonomics Comparison

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To improve comfort and visibility, the S Class has standard pull-out visor extensions that block glare better. The 7 Series doesn’t offer extendable visors.

A power rear sun shade is standard on the S Class to help block heat and glare for the rear passengers. A sunshade costs extra on the 7 Series.

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