For enhanced safety, the front and middle seat shoulder belts of the Mercedes E 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 Audi A8 has only front height adjustable seat belts.
The E Class has standard Tele Aid, which uses a global positioning satellite (GPS) receiver and a cellular system to get driving directions, 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 A8 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies.
Both the E Class and the A8 have standard driver and passenger frontal airbags, front and rear side-impact airbags, head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four wheel antilock brakes, traction control, electronic stability systems to prevent skidding and available all wheel drive.
There are over 18 percent more Mercedes dealers than there are Audi dealers, which makes it easier to get service under the E Class’ warranty.
The E550 Sedan’s standard 5.5 DOHC V8 produces 32 more horsepower (382 vs. 350) and 66 lbs.-ft. more torque (391 vs. 325) than the A8’s standard 4.2 DOHC V8.
The E Class’ 3.0 turbo V6 diesel produces 75 lbs.-ft. more torque (400 vs. 325) than the A8’s standard 4.2 DOHC V8.
As tested in Car and Driver the E550 is faster than the A8 L W12:
E Class |
A8 |
|
Zero to 60 MPH |
4.8 sec |
5.1 sec |
Zero to 100 MPH |
11.8 sec |
12.3 sec |
5 to 60 MPH Rolling Start |
5.2 sec |
5.5 sec |
Quarter Mile |
13.4 sec |
13.6 sec |
Speed in 1/4 Mile |
106 MPH |
105 MPH |
For more instantaneous acceleration and better engine flexibility in any gear, the E Class’ engines produce their peak torque and horsepower at lower RPM’s than the A8:
Horsepower |
Torque |
|
E350 3.5 DOHC V6 |
6000 RPM |
2400 RPM |
E550 Sedan 5.5 DOHC V8 |
6000 RPM |
2800 RPM |
A8 4.2 DOHC V8 |
6800 RPM |
3500 RPM |
A8 L W12 6.0 DOHC 12 cyl. |
6200 RPM |
4000 RPM |
The E Class has a tether attaching its gas cap, to prevent its loss. The A8’s gas cap isn’t tethered, so it can be left at a gas station if the driver forgets to screw the cap back in.
The E Class stops much shorter than the A8:
E Class |
A8 |
||
70 to 0 MPH |
170 feet |
183 feet |
Car and Driver |
60 to 0 MPH |
114 feet |
126 feet |
AutoWeek |
The E Class’ front to rear weight distribution is more even (51.2% to 48.8%) than the A8’s (56% to 44%). This gives the E Class more stable handling and braking.
The E550 Sedan handles at .84 G’s, while the A8 L W12 pulls only .79 G’s of cornering force in a Car and Driver skidpad test.
The E550 Sedan goes through Motor Trend’s slalom faster than the A8 L 4.2 (64.3 vs. 64 MPH).
For better maneuverability, the E Class’ turning circle is 3.6 feet tighter than the A8’s (37.4 feet vs. 41 feet). The E Class’ turning circle is 4.3 feet tighter than the A8 L’s (37.4 feet vs. 41.7 feet).
The Mercedes E Class may be more efficient, handle and accelerate better because it weighs about 500 to 650 pounds less than the Audi A8.
The E Class Sedan is 8.3 inches shorter than the A8, making the E Class easier to handle, maneuver and park in tight spaces.
The E Class Station Wagon has standard seating for 7 passengers; the A8 can only carry 5.
The E Class Sedan has 1.8 inches more front headroom and .5 inches more front legroom than the A8.
The E Class Sedan has a much larger trunk than the A8 (15.9 vs. 14.6 cubic feet).
The E Class Wagon has a much larger cargo area with its rear seat up than the trunk on the A8 (24.4 vs. 14.6 cubic feet).
The E Class Sedan’s cargo area provides more volume than the A8.
E Class |
A8 |
|
Third Seat Removed |
15.9 cubic feet |
14.6 cubic feet |
A low lift-over trunk design makes loading and unloading the E Class easier. The E Class Sedan’s trunk lift-over height is 27 inches, while the A8’s liftover is 28 inches. The E Class Station Wagon’s liftover is only 22 inches.
The E Class’ optional rear seats fold to accommodate long and bulky cargo. The A8 doesn’t offer folding rear seats, only a ski pass-through.
If the windows are left down on the E Class the driver can raise them all using the keyless remote (remote must be aimed at door sensor); on a hot day the driver can lower the windows. The driver of the A8 can’t use the remote to operate the windows.
Heated windshield washer fluid is standard on the E Class to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The A8 doesn’t offer heated windshield washer fluid. It’s standard heated washer nozzles will defrost the washer fluid but not the windshield.
To better shield the driver and front passenger’s vision, the E Class has standard dual-element sun visors that can block glare from two directions simultaneously. The A8 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 E Class has standard extendable sun visors. The A8 doesn’t offer extendable visors.
The E Class’ available 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 A8’s navigation system doesn’t offer real-time traffic updates.
Insurance will cost less for the E Class owner. The Complete Car Cost Guide estimates that insurance for the E Class will cost $1733 to $3119 less than the A8 over a five year period.
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