2019 Mercedes AMG C 63 Coupe vs. 2018 Maserati GranTurismo

Detailed Review, Specifications & Comparison

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2019 Mercedes AMG C 63 Coupe

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Safety

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

Using vehicle speed sensors, smart airbags in the AMG C 63 Coupe deploy with different levels of force or don’t deploy at all to help better protect passengers of all sizes in different collisions. The AMG C 63 Coupe’s side airbags will shut off if a child is leaning against the door. The GranTurismo’s airbags don’t have smart features and will always deploy full force.

The AMG C 63 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 GranTurismo doesn't offer collision warning or crash mitigation brakes.

The AMG C 63 Coupe’s optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. The GranTurismo doesn’t offer a lane departure warning system.

The AMG C 63 Coupe offers an optional Surround View System to allow the driver to see objects all around the vehicle on a screen. The GranTurismo only offers front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

The AMG C 63 Coupe’s blind spot warning system uses digital cameras monitored by computer to alert the driver to moving objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. The GranTurismo doesn’t offer a system to reveal objects in the driver’s blind spots.

To help make backing safer, the AMG C 63 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 GranTurismo doesn’t offer a cross-path warning system.

The AMG C 63 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 GranTurismo doesn’t offer a driver alert monitor.

The AMG C 63 Coupe 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 GranTurismo 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 C 63 Coupe and the GranTurismo have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding and daytime running lights.

Warranty

The AMG C 63 Coupe’s corrosion warranty is 1 year and unlimited miles longer than the GranTurismo’s (5/unlimited vs. 4/50,000).

There are over 3 times as many Mercedes dealers as there are Maserati dealers, which makes it much easier should you ever need service under the AMG C 63 Coupe’s warranty.

Engine

The AMG C 63 Coupe’s standard 4.0 turbo V8 produces 15 more horsepower (469 vs. 454) and 95 lbs.-ft. more torque (479 vs. 384) than the GranTurismo’s 4.7 DOHC V8. The AMG C 63 S Coupe’s standard 4.0 turbo V8 produces 49 more horsepower (503 vs. 454) and 132 lbs.-ft. more torque (516 vs. 384) than the GranTurismo’s 4.7 DOHC V8.

Fuel Economy and Range

On the EPA test cycle the AMG C 63 Coupe gets better fuel mileage than the GranTurismo (17 city/26 hwy vs. 13 city/21 hwy).

In heavy traffic or at stoplights the AMG C 63 Coupe’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The GranTurismo doesn’t offer an automatic engine start/stop system.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes AMG C 63 Coupe higher (5 out of 10) than the Maserati GranTurismo (1). This means the AMG C 63 Coupe produces up to 39 pounds less smog-producing pollutants than the GranTurismo every 15,000 miles.

Transmission

A nine-speed automatic (SMG) is standard on the Mercedes AMG C 63 Coupe, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the GranTurismo.

The AMG C 63 Coupe’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The GranTurismo doesn’t offer launch control.

Brakes and Stopping

For better stopping power the AMG C 63 S Coupe’s brake rotors are larger than those on the GranTurismo:

 

AMG C 63 S Coupe

GranTurismo

Front Rotors

15.8 inches

14.2 inches

Rear Rotors

14.2 inches

13 inches

The AMG C 63 Coupe S 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 GranTurismo doesn’t offer ceramic brake rotors.

Tires and Wheels

For better traction, the AMG C 63 Coupe’s front tires are larger than the largest tires available on the GranTurismo (F:255/40R18 & R:285/35R18 vs. F:245/35R20 & R:285/35R20).

The AMG C 63 S Coupe’s optional 285/30R20 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the GranTurismo’s 35 series tires.

Suspension and Handling

The AMG C 63 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 GranTurismo doesn’t offer drift compensation steering.

For better handling and stability, the track (width between the wheels) on the AMG C 63 Coupe is 2 inches wider in the front and .1 inches wider in the rear than on the GranTurismo.

The AMG C 63 S Coupe handles at .98 G’s, while the GranTurismo pulls only .89 G’s of cornering force in a Car and Driver skidpad test.

Chassis

The AMG C 63 Coupe is 6.2 inches shorter than the GranTurismo, making the AMG C 63 Coupe easier to handle, maneuver and park in tight spaces.

Passenger Space

The AMG C 63 Coupe has .3 inches more front legroom, .6 inches more front shoulder room, 1.3 inches more rear headroom and 1.9 inches more rear legroom than the GranTurismo.

Cargo Capacity

The AMG C 63 Coupe has a much larger trunk than the GranTurismo (10.5 vs. 6.1 cubic feet).

The AMG C 63 Coupe’s standard rear seats fold to accommodate long and bulky cargo. The GranTurismo doesn’t offer folding rear seats.

With its coupe body style, valet key, locking rear seatbacks and remote trunk release lockout, the AMG C 63 offers cargo security. The GranTurismo’s non-lockable remote release defeats cargo security.

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

Ergonomics

The AMG C 63 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 GranTurismo doesn’t offer a remote starting system.

Unlike the driver-only memory system in the GranTurismo, the AMG C 63 Coupe 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 C 63 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 GranTurismo doesn’t offer a heads-up display.

The AMG C 63 Coupe’s front power windows open or close with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The GranTurismo’s front passenger window doesn’t close automatically.

If the windows are left open on the AMG C 63 Coupe 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 GranTurismo can only operate the windows from inside the vehicle, with the ignition on.

Keyless-Go standard on the AMG C 63 Coupe allows you to unlock the driver’s door, 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 Maserati GranTurismo doesn’t offer an advanced key system.

While driving with high beams on, sensitive light sensors available for the AMG C 63 Coupe detect other vehicles which could be blinded and automatically switch to low beams. The GranTurismo 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 AMG C 63 Coupe has standard extendable sun visors. The GranTurismo doesn’t offer extendable visors.

Optional air-conditioned seats in the AMG C 63 Coupe keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The GranTurismo doesn’t offer air-conditioned seats.

To keep a safe, consistent following distance, the AMG C 63 Coupe offers an optional Distronic Plus, 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 GranTurismo doesn’t offer an adaptive cruise control.

The AMG C 63 Coupe’s standard separate stalk mounted cruise control is close at hand. The GranTurismo’s standard cruise control is on an over-crowded turn signal stalk.

The AMG C 63 Coupe’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 GranTurismo doesn’t offer an automated parking system.

Model Availability

The Mercedes AMG C 63 comes in coupe, convertible and sedan bodystyles; the Maserati GranTurismo isn’t available as a sedan.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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