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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 RS 5’s airbags don’t have smart features and will always deploy full force.
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 RS 5 doesn’t offer a driver alert monitor.
Both the AMG C 63 Coupe and the RS 5 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, 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, available lane departure warning systems and around view monitors.
There are over 26 percent more Mercedes dealers than there are Audi dealers, which makes it easier should you ever need service under the AMG C 63 Coupe’s warranty.
J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Mercedes 14th in initial quality, above the industry average. With 13 more problems per 100 vehicles, Audi is ranked 25th, below the industry average.
The AMG C 63 Coupe’s standard 4.0 turbo V8 produces 25 more horsepower (469 vs. 444) and 36 lbs.-ft. more torque (479 vs. 443) than the RS 5’s 2.9 turbo V6. The AMG C 63 S Coupe’s standard 4.0 turbo V8 produces 59 more horsepower (503 vs. 444) and 73 lbs.-ft. more torque (516 vs. 443) than the RS 5’s 2.9 turbo V6.
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 RS 5 doesn’t offer an automatic engine start/stop system.
The AMG C 63 Coupe has 2.1 gallons more fuel capacity than the RS 5 (17.4 vs. 15.3 gallons), for longer range between fill-ups.
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 an eight-speed automatic is available for the RS 5.
The AMG C 63 Coupe offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The RS 5 doesn’t offer an SMG or a conventional manual transmission.
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 RS 5 doesn’t offer launch control.
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 RS 5 doesn’t offer drift compensation steering.
For a smoother ride and more stable handling, the AMG C 63 Coupe’s wheelbase is 2.9 inches longer than on the RS 5 (111.8 inches vs. 108.9 inches).
For better handling and stability, the track (width between the wheels) on the AMG C 63 Coupe is 1.5 inches wider in the front and .2 inches wider in the rear than on the RS 5.
For better maneuverability, the AMG C 63 Coupe’s turning circle is 1.3 feet tighter than the RS 5’s (37.1 feet vs. 38.4 feet).
To make loading and unloading groceries and cargo easier, especially for short adults, the AMG C 63 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 RS 5 doesn’t offer a power trunk, so its trunk has to be closed manually.
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 RS 5 doesn’t offer a remote starting system.
Unlike the driver-only memory system in the RS 5, 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’s standard easy entry system raises the steering wheel and glides the driver’s seat back, making it easier for the driver to get in and out. The RS 5 doesn’t offer an easy entry system.
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 RS 5 can’t use the remote to operate the windows.
To help drivers see further while navigating curves, the AMG C 63 Coupe offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The RS 5 doesn’t offer cornering lights.
The Mercedes AMG C 63 comes in coupe, convertible and sedan bodystyles; the Audi RS 5 isn’t available as a convertible or sedan.
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