Certified Benz & Beemer Compares 2017 Mercedes Benz S-Class VS 2017 BMW 7 Near Phoenix, AZ

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2017 Mercedes Benz S-Class

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2017 BMW 7

Safety Comparison

For enhanced safety, the front and rear seat shoulder belts of the Mercedes S-Class 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.

For enhanced safety, the front 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 doesn’t offer height-adjustable seat belts.

The rear seatbelts optional on the S-Class inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The 7 Series doesn’t offer inflatable seatbelts.

Both the S-Class and the 7 Series have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, driver alert monitors, available night vision systems, lane departure warning systems, blind spot warning systems and around view monitors.

Reliability Comparison

J.D. Power and Associates’ 2016 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than BMW vehicles. J.D. Power ranks Mercedes 12th in reliability, above the industry average. With 7 more problems per 100 vehicles, BMW is ranked 14th.

Engine Comparison

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




S550e 3.0 turbo V6 hybrid

436 HP

479 lbs.-ft.

S550 4.7 turbo V8

449 HP

516 lbs.-ft.

S600 5.5 turbo V12

523 HP

612 lbs.-ft.

S63 AMG 5.5 turbo V8

577 HP

664 lbs.-ft.

S65 AMG 6.0 turbo V12

621 HP

738 lbs.-ft.

740i 3.0 turbo 6 cyl.

320 HP

332 lbs.-ft.

740e 2.0 turbo 4 cyl. hybrid

322 HP

369 lbs.-ft.

750i 4.4 turbo V8

445 HP

479 lbs.-ft.

Fuel Economy and Range Comparison

The S550e can drive on battery power alone for up to 18.6 miles. The 7 Series must run its internal combustion engine to move.

The S-Class S63/S65/600’s standard fuel tank has 4 gallons more fuel capacity than the 7 Series (24.6 vs. 20.6 gallons).

Brakes and Stopping Comparison

For better stopping power the S-Class’ brake rotors are larger than those on the 7 Series:






Front Rotors

14.6 inches

16.5 inches

13.7 inches

15.5 inches

Rear Rotors

14.2 inches

14.1 inches

13.6 inches

14.5 inches

The S-Class S63/S65 offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The 7 Series doesn’t offer ceramic brake rotors.

Tires and Wheels Comparison

For better traction, the S63/S65’s tires are larger than the largest tires available on the 7 Series (F:255/40R20 & R:285/35R20 vs. 245/50R18).

The S-Class’ standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the 7 Series’ standard 50 series tires. The S-Class’ 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 tires.

Suspension and Handling Comparison

The S-Class’ drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The 7 Series doesn’t offer drift compensation steering.

The S600 handles at .90 G’s, while the 750i xDrive pulls only .88 G’s of cornering force in a Motor Trend skidpad test.

For better maneuverability, the S65 AMG’s turning circle is 3.9 feet tighter than the 740i’s (38.1 feet vs. 42 feet). The S550’s turning circle is 2.3 feet tighter than the 750i’s (40 feet vs. 42.3 feet).

Passenger Space Comparison

The S-Class has .5 inches more front shoulder room and 1.4 inches more rear shoulder room than the 7 Series.

Cargo Capacity Comparison

The S-Class has a much larger trunk than the 7 Series (16.3 vs. 14 cubic feet).

Ergonomics Comparison

Heated windshield washer fluid is standard on the S-Class to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The 7 Series doesn’t offer heated windshield washer fluid.

To better shield the driver and front passenger’s vision, the S-Class has standard dual-element sun visors that can block glare from two directions simultaneously. The 7 Series doesn’t offer secondary sun visors.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the S-Class has standard extendable sun visors. The 7 Series doesn’t offer extendable visors.

The S-Class has a 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The 7 Series doesn’t offer a house-current electrical outlet.

Economic Advantages Comparison

According to The Car Book by Jack Gillis, the S-Class is less expensive to operate than the 7 Series because typical repairs cost much less on the S-Class than the 7 Series, including $94 less for fuel injection, $10 less for a fuel pump, $899 less for a timing belt/chain and $1343 less for a power steering pump.

Recommendations Comparison

The S-Class is ranked first in its class and received the 2015 “Total Quality Award.” The 7 Series is not ranked.

The S-Class was chosen as one of Automobile Magazine’s “All Stars” for 3 of the last 17 years. The 7 Series has never been an “All Star.”

The Mercedes S-Class outsold the BMW 7 Series by over two to one during 2015.

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