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For enhanced safety, the front and rear seat shoulder belts of the Mercedes E-Class Sedan have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Alfa Romeo Giulia doesn’t offer pretensioners for the rear seat belts.
The E-Class Sedan’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Giulia doesn’t offer pre-crash pretensioners.
For enhanced safety, the front seat shoulder belts of the Mercedes E-Class Sedan 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 Alfa Romeo Giulia doesn’t offer height-adjustable seat belts.
The rear seatbelts optional on the E-Class Sedan 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 Giulia doesn’t offer inflatable seatbelts.
The E-Class Sedan offers an optional Surround View System to allow the driver to see objects all around the vehicle on a screen. The Giulia only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
The E-Class Sedan’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 Giulia doesn’t offer a driver alert monitor.
The E-Class Sedan has standard Mercedes-Benz Emergency Call, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn 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 Giulia 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 E-Class Sedan and the Giulia 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, available all wheel drive, lane departure warning systems, blind spot warning systems and rear cross-path warning.
For its top level performance in IIHS driver-side small overlap frontal, moderate overlap frontal, side impact, rear impact and roof-crush tests, its standard front crash prevention system, its “Good” rating in the new passenger-side small overlap crash test, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the E-Class Sedan its highest rating: “Top Pick Plus” for 2018, a rating granted to only 28 vehicles tested by the IIHS. The Giulia was last qualified as only a “Top Pick” in 2017.
The E-Class Sedan’s corrosion warranty is 1 year longer than the Giulia’s (5 vs. 4 years).
There are over 2 times as many Mercedes dealers as there are Alfa Romeo dealers, which makes it much easier should you ever need service under the E-Class Sedan’s warranty.
A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the E-Class Sedan’s reliability 70 points higher than the Giulia.
The E 450 4MATIC Sedan’s standard 3.0 turbo V6 produces 82 more horsepower (362 vs. 280) and 63 lbs.-ft. more torque (369 vs. 306) than the Giulia’s 2.0 turbo 4 cyl. The AMG E 53 Sedan’s standard 3.0 turbo 6 cyl. hybrid produces 149 more horsepower (429 vs. 280) and 78 lbs.-ft. more torque (384 vs. 306) than the Giulia’s 2.0 turbo 4 cyl.
Regenerative brakes improve the E-Class Sedan 53 AMG’s fuel efficiency by converting inertia back into energy instead of wasting it. The Giulia doesn’t offer a regenerative braking system.
The E-Class Sedan 300’s standard fuel tank has 2.1 gallons more fuel capacity than the Giulia (17.4 vs. 15.3 gallons), for longer range between fill-ups. The E-Class Sedan 450/AMG 53’s standard fuel tank has 5.8 gallons more fuel capacity than the Giulia (21.1 vs. 15.3 gallons).
In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes E-Class Sedan higher (5 out of 10) than the Alfa Romeo Giulia (3). This means the E-Class Sedan produces up to 16.5 pounds less smog-producing pollutants than the Giulia every 15,000 miles.
A nine-speed automatic is standard on the Mercedes E-Class Sedan, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Giulia.
For better stopping power the E-Class Sedan’s front brake rotors are larger than those on the Giulia:
AMG E 53
The E-Class Sedan’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the Giulia are solid, not vented.
The E-Class Sedan stops much shorter than the Giulia:
70 to 0 MPH
Car and Driver
60 to 0 MPH
60 to 0 MPH (Wet)
For better traction, the E-Class Sedan has larger standard tires than the Giulia (245/45R18 vs. 225/50R17). The E-Class Sedan’s optional tires are larger than the largest tires available on the Giulia (F:245/40R19 & R:275/35R19 vs. F:225/40R19 & R:255/35R19).
The E-Class Sedan’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Giulia’s standard 50 series tires.
For better ride, handling and brake cooling the E-Class Sedan has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Giulia.
The E-Class Sedan has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The E-Class Sedan’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 Giulia doesn’t offer a load leveling suspension.
The E-Class Sedan’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 Giulia doesn’t offer drift compensation steering.
For a smoother ride and more stable handling, the E-Class Sedan’s wheelbase is 4.7 inches longer than on the Giulia (115.7 inches vs. 111 inches).
For better handling and stability, the average track (width between the wheels) on the E-Class Sedan is 2.1 inches wider in the front than the track on the Giulia.
The E-Class Sedan 4MATIC handles at .92 G’s, while the Giulia Ti Q4 pulls only .79 G’s of cornering force in a Car and Driver skidpad test.
The E-Class Sedan 4MATIC executes Motor Trend’s “Figure Eight” maneuver 2 seconds quicker than the Giulia Ti (25.1 seconds @ .77 average G’s vs. 27.1 seconds @ .66 average G’s).
As tested by Car and Driver while at idle, the interior of the E 300 Sedan 4MATIC is quieter than the Giulia Ti (38 vs. 41 dB).
The E-Class Sedan has 2.6 cubic feet more passenger volume than the Giulia (98 vs. 95.4).
The E-Class Sedan has 1.7 inches more front shoulder room, .6 inches more rear headroom, 1.1 inches more rear legroom and 3.5 inches more rear shoulder room than the Giulia.
The E-Class Sedan has a much larger trunk than the Giulia (13.1 vs. 12 cubic feet).
With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the E-Class offers cargo security. The Giulia’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 E-Class Sedan. The Giulia doesn’t offer locking storage for small valuables.
To make loading and unloading groceries and cargo easier when your hands are full, the E-Class Sedan’s power trunk can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The Giulia doesn’t offer a power or hands-free opening trunk.
Unlike the driver-only memory seat and mirrors in the Giulia, the E-Class Sedan has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.
The E-Class Sedan offers an optional heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Giulia doesn’t offer a heads-up display.
If the windows are left open on the E-Class Sedan the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the Giulia can only operate the windows from inside the vehicle, with the ignition on.
Heated windshield washer fluid is standard on the E-Class Sedan to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The Giulia doesn’t offer heated windshield washer fluid. Its optional 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 Sedan has standard dual-element sun visors that can block glare from two directions simultaneously. The Giulia doesn’t offer secondary sun visors.
A power rear sunshade is optional in the E-Class Sedan to help block heat and glare for the rear passengers. The Giulia doesn’t offer a rear sunshade.
When the E-Class Sedan is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Giulia’s mirror doesn’t automatically adjust for backing.
Optional air-conditioned seats in the E-Class Sedan keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The Giulia doesn’t offer air-conditioned seats.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes E-Class offers an optional wireless phone charging system (Qi) in the center console. The Giulia doesn’t offer wireless personal charging.
The E-Class Sedan offers an optional 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 Giulia doesn’t offer a house-current electrical outlet.
The E-Class Sedan’s optional Active Parking Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The Giulia doesn’t offer an automated parking system.
The Mercedes E-Class comes in coupe, convertible, sedan and station wagon bodystyles; the Alfa Romeo Giulia isn’t available as a coupe, convertible or station wagon.
Consumer Reports® recommends the Mercedes E-Class Sedan, based on reliability, safety and performance. The Alfa Romeo Giulia isn't recommended.
The Mercedes E-Class outsold the Alfa Romeo Giulia by over four to one during the 2018 model year.
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