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For enhanced safety, the front and rear seat shoulder belts of the Mercedes S-Class Coupe 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 Aston Martin DB11 doesn’t offer pretensioners for the rear seat belts.
The S-Class Coupe’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The DB11 doesn’t offer pre-crash pretensioners.
The S-Class Coupe has standard front and rear seat side-impact airbags and head airbags, which act as a forgiving barrier between the passengers and the door. Combined with high-strength steel door beams this system increases protection from broadside collisions. The DB11 doesn't offer rear-seat side-impact airbags, only ones for front seat occupants.
The S-Class Coupe has standard NECK-PRO Front Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the NECK-PRO Front Head Restraints system moves the headrests forward to prevent neck and spine injuries. The DB11 doesn’t offer a whiplash protection system.
The S-Class Coupe has standard Active Brake Assist, 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 DB11 doesn't offer collision warning or crash mitigation brakes.
The S-Class Coupe has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The DB11 doesn’t offer all-wheel drive.
An active infrared night vision system optional on the S-Class Coupe 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 and even aims one of the vehicle’s headlights in the direction of the person or object. The DB11 doesn’t offer a night vision system.
The S-Class Coupe’s lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. The DB11 doesn’t offer a lane departure warning system.
To help make backing safer, the S-Class Coupe’s cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The DB11 doesn’t offer a cross-path warning system.
The S-Class Coupe’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The DB11 doesn’t offer a driver alert monitor.
The S-Class Coupe has standard Mercedes-Benz Emergency Call, 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 DB11 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 S-Class Coupe and the DB11 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and around view monitors.
The Mercedes S-Class Coupe weighs 606 to 860 pounds more than the Aston Martin DB11. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.
The S-Class Coupe comes with a full 4-year/50,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The DB11’s 3-year basic warranty expires 1 year sooner.
There are almost 11 times as many Mercedes dealers as there are Aston Martin dealers, which makes it much easier should you ever need service under the S-Class Coupe’s warranty.
On the EPA test cycle the S-Class Coupe gets better fuel mileage than the DB11:
560 4.0 turbo V8
17 city/26 hwy
4.0 turbo V8
18 city/24 hwy
5.2 turbo V12
15 city/22 hwy
A nine-speed automatic is standard on the Mercedes S-Class Coupe, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the DB11.
All wheel drive, available in the S-Class Coupe, provides the best traction for acceleration in wet, dry, and icy conditions. In corners, all wheel drive allows both outside wheels to provide power, balancing the car. This allows for better handling. The Aston Martin DB11 is not available with all wheel drive.
Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the S-Class Coupe can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The DB11 doesn’t offer run-flat tires.
The front and rear suspension of the S-Class Coupe uses air springs for a smoother, controlled ride than the DB11, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.
The S-Class Coupe has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The S-Class Coupe’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The DB11 doesn’t offer a load leveling suspension.
The S-Class Coupe’s 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 DB11 doesn’t offer drift compensation steering.
For a smoother ride and more stable handling, the S-Class Coupe’s wheelbase is 5.5 inches longer than on the DB11 (115.9 inches vs. 110.4 inches).
Because it has more passenger and cargo room, the EPA rates the S-Class Coupe a Compact car, while the DB11 Coupe is rated a Subcompact.
The S-Class Coupe has 14.6 cubic feet more passenger volume than the DB11 (90.6 vs. 76).
The S-Class Coupe has 1.4 inches more front headroom, 2.7 inches more front shoulder room, 3.5 inches more rear headroom, 5.1 inches more rear legroom and 2.8 inches more rear shoulder room than the DB11.
The S-Class Coupe has a larger trunk than the DB11 (10.4 vs. 9.9 cubic feet).
With its coupe body style, valet key and remote trunk release lockout, the S-Class offers cargo security. The DB11’s non-lockable remote release defeats cargo security.
A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the S-Class Coupe. The DB11 doesn’t offer locking storage for small valuables.
To make loading and unloading groceries and cargo easier, especially for short adults, the S-Class Coupe has a standard power trunk, which opens and closes automatically by pressing a button or just by kicking your foot under the back bumper, completely leaving your hands free. The DB11 doesn’t offer a power trunk, so its trunk has to be closed manually.
The S-Class Coupe has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The DB11 doesn’t offer a remote starting system.
The S-Class Coupe offers an optional heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The DB11 doesn’t offer a heads-up display.
The S-Class Coupe’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The DB11’s cruise control switches are unlit, making them difficult to find at night and operate safely.
Heated windshield washer fluid is standard on the S-Class Coupe to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The DB11 doesn’t offer heated windshield washer fluid.
While driving with high beams on, sensitive light sensors standard on the S-Class Coupe detect other vehicles which could be blinded and automatically switch to low beams. The DB11 doesn’t offer automatic dimming high beams.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the S-Class Coupe has standard extendable sun visors. The DB11 doesn’t offer extendable visors.
The S-Class Coupe’s sun-visors swivel front-to-side to block glare from the side windows. The DB11’s visors are fixed into the windshield header.
A power rear sunshade is standard in the S-Class Coupe to help block heat and glare for the rear passengers. The DB11 doesn’t offer a rear sunshade.
The S-Class Coupe has standard automatic dimming rear and side view mirrors which automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The DB11 has an automatic rear view mirror, but its side mirrors don’t dim.
Both the S-Class Coupe and the DB11 have standard heated front seats. The S-Class Coupe also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the DB11.
The S-Class Coupe has standard massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the DB11.
For greater rear passenger comfort, the S-Class Coupe has standard rear a/c vents to keep rear occupants more comfortable. The DB11 doesn’t offer rear vents.
To keep a safe, consistent following distance, the S-Class Coupe offers an optional Active Distance Assist Distronic, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The DB11 doesn’t offer an adaptive cruise control.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes S-Class has a standard wireless phone charging system (Qi) in the center console. The DB11 doesn’t offer wireless personal charging.
The S-Class Coupe 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 DB11 doesn’t offer a house-current electrical outlet.
The S-Class Coupe’s Active Parking Assist can parallel park or back into a parking spot by itself, stopping and changing direction automatically. The DB11’s automatic parking system requires operating the brakes and transmission to safely park.
The Mercedes S-Class comes in coupe, convertible and sedan bodystyles; the Aston Martin DB11 isn’t available as a sedan.
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