2019 Mercedes AMG E 63 vs. 2019 Alfa Romeo Giulia Quadrifoglio

Detailed Review, Specifications & Comparison

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2019 Alfa Romeo Giulia Quadrifoglio

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Safety

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For enhanced safety, the front and middle seat shoulder belts of the Mercedes AMG E 63 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Alfa Romeo Giulia Quadrifoglio doesn’t offer pretensioners for the middle seat belts.

The AMG E 63’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Giulia Quadrifoglio doesn’t offer pre-crash pretensioners.

For enhanced safety, the front seat shoulder belts of the Mercedes AMG E 63 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 Quadrifoglio doesn’t offer height-adjustable seat belts.

The middle row seatbelts optional on the AMG E 63 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 Quadrifoglio doesn’t offer inflatable seatbelts.

The AMG E 63 has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Giulia Quadrifoglio doesn’t offer all-wheel drive.

The AMG E 63 has a standard Surround View System to allow the driver to see objects all around the vehicle on a screen. The Giulia Quadrifoglio 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 AMG E 63’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 Quadrifoglio doesn’t offer a driver alert monitor.

The AMG E 63 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 Quadrifoglio 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 AMG E 63 and the Giulia Quadrifoglio 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, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning and available lane departure warning systems.

The Mercedes AMG E 63 weighs 748 to 976 pounds more than the Alfa Romeo Giulia Quadrifoglio. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

Warranty

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The AMG E 63’s corrosion warranty is 1 year longer than the Giulia Quadrifoglio’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 AMG E 63’s warranty.

Reliability

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To reliably start during all conditions and help handle large electrical loads, the AMG E 63 has a standard 850-amp battery. The Giulia Quadrifoglio’s 525-amp battery isn’t as powerful.

Engine

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The AMG E 63’s 4.0 turbo V8 produces 98 more horsepower (603 vs. 505) and 184 lbs.-ft. more torque (627 vs. 443) than the Giulia Quadrifoglio’s 2.9 turbo V6.

As tested in Car and Driver the Mercedes AMG E 63 is faster than the Alfa Romeo Giulia Quadrifoglio:

AMG E 63

Giulia Quadrifoglio

Zero to 30 MPH

1.1 sec

1.6 sec

Zero to 60 MPH

2.9 sec

3.6 sec

Zero to 100 MPH

6.7 sec

8.1 sec

5 to 60 MPH Rolling Start

3.8 sec

4.2 sec

Passing 30 to 50 MPH

2.3 sec

2.5 sec

Passing 50 to 70 MPH

2.5 sec

2.8 sec

Quarter Mile

11 sec

11.9 sec

Speed in 1/4 Mile

128 MPH

121 MPH

In a Car and Driver race course test, the Mercedes AMG E 63 S Sedan was clocked 3.2 seconds faster than the Alfa Romeo Giulia Quadrifoglio (175.4 sec. vs. 178.6 sec.).

Fuel Economy and Range

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The AMG E 63 has 5.8 gallons more fuel capacity than the Giulia Quadrifoglio (21.1 vs. 15.3 gallons), for longer range between fill-ups.

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes AMG E 63 higher (5 out of 10) than the Alfa Romeo Giulia Quadrifoglio (3). This means the AMG E 63 produces up to 16.5 pounds less smog-producing pollutants than the Giulia Quadrifoglio every 15,000 miles.

Transmission

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A nine-speed automatic is standard on the Mercedes AMG E 63, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Giulia Quadrifoglio.

Brakes and Stopping

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For better stopping power the AMG E 63’s brake rotors are larger than those on the Giulia Quadrifoglio:

AMG E 63

AMG E 63 opt.

Giulia Quadrifoglio

Giulia Quadrifoglio opt.

Front Rotors

15.4 inches

15.8 inches

14.2 inches

15.4 inches

Rear Rotors

14.2 inches

14.2 inches

13.8 inches

14.2 inches

Tires and Wheels

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For better traction, the AMG E 63 has larger tires than the Giulia Quadrifoglio (F:265/35R20 & R:295/30R20 vs. F:245/35R19 & R:285/30R19).

For better ride, handling and brake cooling the AMG E 63 has standard 20-inch wheels. Only 19-inch wheels are available on the Giulia Quadrifoglio.

Suspension and Handling

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The front and rear suspension of the AMG E 63 uses air springs for a smoother, controlled ride than the Giulia Quadrifoglio, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The AMG E 63 has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The AMG E 63’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 Quadrifoglio doesn’t offer a load leveling suspension.

The AMG E 63’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 Quadrifoglio doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the AMG E 63’s wheelbase is 4.7 inches longer than on the Giulia Quadrifoglio (115.7 inches vs. 111 inches).

For better handling and stability, the track (width between the wheels) on the AMG E 63 is 3.7 inches wider in the front than on the Giulia Quadrifoglio.

The AMG E 63 S Sedan handles at 1.01 G’s, while the Giulia Quadrifoglio pulls only 1.00 G’s of cornering force in a Car and Driver skidpad test.

Chassis

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As tested by Car and Driver while at idle, the interior of the AMG E 63 S Sedan is quieter than the Giulia Quadrifoglio (47 vs. 48 dB).

Passenger Space

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The AMG E 63 Wagon has standard seating for 7 passengers; the Giulia Quadrifoglio can only carry 5.

The AMG E 63 has 2.6 cubic feet more passenger volume than the Giulia Quadrifoglio (98 vs. 95.4).

The AMG E 63 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 Quadrifoglio.

Cargo Capacity

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The AMG E 63 Sedan has a larger trunk than the Giulia Quadrifoglio (13.1 vs. 12 cubic feet).

With its sedan body style, valet key, locking rear seatbacks and remote trunk release in the glovebox, the AMG E 63 offers cargo security. The Giulia Quadrifoglio’s non-lockable remote release defeats cargo security.

To make loading and unloading groceries and cargo easier when your hands are full, the AMG E 63’s power trunk can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The Giulia Quadrifoglio doesn’t offer a power or hands-free opening trunk.

Ergonomics

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The AMG E 63 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 Giulia Quadrifoglio doesn’t offer a remote starting system.

Unlike the driver-only memory seat and mirrors in the Giulia Quadrifoglio, the AMG E 63 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 AMG E 63 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 Giulia Quadrifoglio doesn’t offer a heads-up display.

If the windows are left open on the AMG E 63 the driver can close them all at the outside door handle or from a distance using the remote (remote must be aimed at door sensor). On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the Giulia Quadrifoglio can only operate the windows from inside the vehicle, with the ignition on.

Keyless-Go standard on the AMG E 63 allows you to unlock the doors, trunk and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the vehicle in bad weather or making a hurried start to your trip. The Alfa Romeo Giulia Quadrifoglio’s Keyless-Go doesn’t unlock the trunk.

A power rear sunshade is optional in the AMG E 63 Sedan to help block heat and glare for the rear passengers. The Giulia Quadrifoglio doesn’t offer a rear sunshade.

When the AMG E 63 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 Quadrifoglio’s mirror doesn’t automatically adjust for backing.

Standard air-conditioned seats in the AMG E 63 keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The Giulia Quadrifoglio doesn’t offer air-conditioned seats.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes AMG E 63 has a standard wireless phone charging system (Qi) in the center console. The Giulia Quadrifoglio doesn’t offer wireless personal charging.

The AMG E 63 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 Quadrifoglio doesn’t offer a house-current electrical outlet.

The AMG E 63’s Active Parking Assist can parallel park by itself, stopping and changing direction automatically. The Giulia Quadrifoglio doesn’t offer an automated parking system.

Model Availability

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The Mercedes AMG E 63 comes in sedan and station wagon bodystyles; the Alfa Romeo Giulia Quadrifoglio isn’t available as a station wagon.

Economic Advantages

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Insurance will cost less for the AMG E 63 owner. The Complete Car Cost Guide estimates that insurance for the AMG E 63 will cost $155 less than the Giulia Quadrifoglio over a five-year period.

The AMG E 63 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the AMG E 63 will retain 48.19% to 49.83% of its original price after five years, while the Giulia Quadrifoglio only retains 39.17%.

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