Compare the Mercedes-Benz AMG G 63 2021 AMG G 63 4MATIC SUV VS Mercedes-Benz G 550 2020 G 550 4MATIC SUV

Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
MSRP: 211900$
MSRP: 147900$
Features
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Drivetrain
All Wheel Drive
All Wheel Drive
Body
Suv
Suv
Doors
4
4
Fuel
Gasoline Direct Injection
Gasoline Direct Injection
Transmission
Automatic w/OD
Automatic w/OD
Engine
4.0L Biturbo V8
4.0L Biturbo V8
Emissions
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
G/km Of CO2 Emissions
396
378
Weight Information
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Gross Vehicle Weight Rating
7055.00 (lbs)
6945.00 (lbs)
Option Weight - Front
0.00 (lbs)
0.00 (lbs)
Option Weight - Rear
0.00 (lbs)
0.00 (lbs)
Payload Weight Front
0 (lbs)
0 (lbs)
Payload Weight Rear
0 (lbs)
0 (lbs)
Standard Weight - Front
0 (lbs)
0 (lbs)
Standard Weight - Rear
0 (lbs)
0 (lbs)
Total Option Weight
0.00 (lbs)
0.00 (lbs)
Transmission
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Drivetrain
All Wheel Drive
All Wheel Drive
Eighth Gear Ratio (:1)
0.72
0.72
Fifth Gear Ratio (:1)
1.21
1.21
First Gear Ratio (:1)
5.35
5.35
Fourth Gear Ratio (:1)
1.64
1.64
Reverse Ratio (:1)
4.80
4.80
Second Gear Ratio (:1)
3.24
3.24
Seventh Gear Ratio (:1)
0.86
0.86
Sixth Gear Ratio (:1)
1.00
1.00
Third Gear Ratio (:1)
2.25
2.25
Trans Description Cont.
Automatic w/OD
Automatic w/OD
Trans Order Code
G44
G43
Trans Type
9
9
Transfer Case Model
Electronic
Electronic
Transfer Case Power Take Off
No
No
Interior Dimensions
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Front Head Room
40.4 (in)
40.4 (in)
Front Hip Room
56.9 (in)
56.9 (in)
Front Leg Room
38.7 (in)
38.7 (in)
Front Shoulder Room
57.8 (in)
57.8 (in)
Passenger Capacity
5
5
Second Head Room
40.5 (in)
40.5 (in)
Second Hip Room
57.2 (in)
57.2 (in)
Second Leg Room
39.5 (in)
39.5 (in)
Second Shoulder Room
57.4 (in)
57.4 (in)
Mileage
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
EnerGuide Estimate - City
18.6 (L/100 km)
18 (L/100 km)
EnerGuide Estimate - Hwy
15.5 (L/100 km)
14.1 (L/100 km)
Trailering
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Dead Weight Hitch - Max Tongue Wt.
500 (lbs)
500 (lbs)
Dead Weight Hitch - Max Trailer Wt.
5000 (lbs)
5000 (lbs)
Maximum Trailering Capacity
7716 (lbs)
7716 (lbs)
Wt Distributing Hitch - Max Tongue Wt.
772 (lbs)
772 (lbs)
Wt Distributing Hitch - Max Trailer Wt.
7716 (lbs)
7716 (lbs)
Engine
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Displacement
4.0 L/243
4.0 L/243
Engine Oil Cooler
Regular Duty
Regular Duty
Engine Order Code
-
MC2
Engine Type
Twin Turbo Premium Unleaded V-8
Twin Turbo Premium Unleaded V-8
Fuel System
Gasoline Direct Injection
Gasoline Direct Injection
SAE Net Horsepower @ RPM
577 @ 6000
416 @ 5250
SAE Net Torque @ RPM
627 @ 2500
450 @ 2000
Type
4.0L Biturbo V8 null
4.0L Biturbo V8 null
Suspension
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Axle Ratio (:1) - Front
-
3.45
Axle Ratio (:1) - Rear
-
3.45
Axle Type - Front
Independent
Independent
Axle Type - Rear
Rigid Axle
Rigid Axle
Suspension Type - Front
Double Wishbone
Double Wishbone
Suspension Type - Rear
Trailing Link
Trailing Link
Tires
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Front Tire Order Code
IM6
I84
Front Tire Size
P285/45WR21
P275/55VR19
Rear Tire Order Code
IM6
I84
Rear Tire Size
P285/45WR21
P275/55VR19
Spare Tire Size
Full-Size
Full-Size
Wheels
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Front Wheel Material
Aluminum
Aluminum
Front Wheel Size
21 X 10 (in)
19 X 8.5 (in)
Rear Wheel Material
Aluminum
Aluminum
Rear Wheel Size
21 X 10 (in)
19 X 8.5 (in)
Spare Wheel Material
Aluminum
Aluminum
Spare Wheel Size
Full-Size (in)
Full-Size (in)
Steering
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Steering Type
Rack-Pinion
Rack-Pinion
Turning Diameter - Curb to Curb
43 (ft)
44.6 (ft)
Brakes
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Brake ABS System
4-Wheel
4-Wheel
Brake ABS System (Second Line)
4-Wheel
4-Wheel
Brake Type
4-Wheel Disc
4-Wheel Disc
Disc - Front (Yes or )
Yes
Yes
Disc - Rear (Yes or )
Yes
Yes
Front Brake Rotor Diam x Thickness
14.2 (in)
13.9 (in)
Rear Brake Rotor Diam x Thickness
13 (in)
13.6 (in)
Fuel Tank
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Fuel Tank Capacity, Approx
100 (L)
100 (L)
Exterior Dimensions
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Body Length
0.00 (ft)
0.00 (ft)
Height, Overall
77.4 (in)
77.5 (in)
Length, Overall
191.9 (in)
189.6 (in)
Liftover Height
29.7 (in)
29.7 (in)
Min Ground Clearance
9.5 (in)
9.5 (in)
Track Width, Front
65.1 (in)
64.5 (in)
Track Width, Rear
65.1 (in)
64.5 (in)
Wheelbase
113.8 (in)
113.8 (in)
Width, Max w/o mirrors
78.1 (in)
76 (in)
Cargo Area Dimensions
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Cargo Area Length @ Floor to Seat 1
68.5 (in)
68.5 (in)
Cargo Area Length @ Floor to Seat 2
29.8 (in)
29.8 (in)
Cargo Box (Area) Height
44.3 (in)
44.3 (in)
Cargo Volume to Seat 1
44 (ft³)
44 (ft³)
Cargo Volume to Seat 2
16 (ft³)
16 (ft³)
Cargo Volume to Seat 3
16 (ft³)
16 (ft³)

Equipment

Mechanical
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
100 L Fuel Tank
2 Skid Plates
4-Wheel Disc Brakes w/4-Wheel ABS, Front And Rear Vented Discs, Brake Assist, Hill Hold Control and Electric Parking Brake
Automatic w/Driver Control Ride Control Sport Tuned Adaptive Suspension
Axle Ratio: TBD
Battery w/Run Down Protection
Class IV Towing Equipment -inc: Hitch and Trailer Sway Control
Double Wishbone Front Suspension w/Coil Springs
Driver Selectable Front Locking Differential
Driver Selectable Rear Locking Differential
Dual Stainless Steel Exhaust w/Chrome Tailpipe Finisher
Electric Power-Assist Speed-Sensing Steering
Electro-Mechanical Limited Slip Differential
Electronic Transfer Case
Engine Auto Stop-Start Feature
Engine Oil Cooler
Engine: 4.0L Biturbo V8
Front And Rear Anti-Roll Bars
Full-Time All-Wheel
GVWR: 3,200 kgs
Gas-Pressurized Shock Absorbers
Permanent Locking Hubs
Trailer Wiring Harness
Trailing Link Rear Suspension w/Coil Springs
Transmission: AMG SPEEDSHIFT PLUS 9G-TRONIC
100 L Fuel Tank
2 Skid Plates
3.45 Axle Ratio
4-Wheel Disc Brakes w/4-Wheel ABS, Front And Rear Vented Discs, Brake Assist, Hill Hold Control and Electric Parking Brake
Automatic Ride Control Suspension
Battery w/Run Down Protection
Class IV Towing Equipment -inc: Hitch and Trailer Sway Control
Double Wishbone Front Suspension w/Coil Springs
Driver Selectable Front Locking Differential
Driver Selectable Rear Locking Differential
Dual Stainless Steel Exhaust
Electric Power-Assist Speed-Sensing Steering
Electro-Mechanical Limited Slip Differential
Electronic Transfer Case
Engine Auto Stop-Start Feature
Engine Oil Cooler
Engine: 4.0L Biturbo V8
Front And Rear Anti-Roll Bars
Full-Time 4MATIC All-Wheel
GVWR: TBD
Gas-Pressurized Shock Absorbers
Permanent Locking Hubs
Trailer Wiring Harness
Trailing Link Rear Suspension w/Coil Springs
Transmission w/Driver Selectable Mode and Sequential Shift Control w/Steering Wheel Controls
Transmission: 9G-TRONIC Automatic
Exterior
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
Aluminum Spare Wheel
Black Bodyside Mouldings, Black Bodyside Insert and Body-Coloured Fender Flares
Black Door Handles
Black Side Windows Trim and Black Front Windshield Trim
Body-Coloured Front Bumper w/Chrome Rub Strip/Fascia Accent, Chrome Bumper Insert and 1 Tow Hook
Body-Coloured Power Heated Side Mirrors w/Driver Auto Dimming, Power Folding and Turn Signal Indicator
Body-Coloured Rear Step Bumper w/Chrome Rub Strip/Fascia Accent, Chrome Bumper Insert and 1 Tow Hook
Chrome Grille
Clearcoat Paint
Conventional Rear Cargo Access
Cornering Lights
Deep Tinted Glass
Express Open/Close Sliding And Tilting Glass 1st Row Sunroof w/Sunshade
Fixed Rear Window w/Fixed Interval Wiper and Defroster
Front License Plate Bracket
Front Windshield -inc: Electrically Heated Glass
Full-Size Spare Tire Mounted Outside Rear
Galvanized Steel/Aluminum Panels
Headlights-Automatic Highbeams
LED Brakelights
Laminated Glass
Perimeter/Approach Lights
Programmable Projector Beam Led Low/High Beam Daytime Running Auto-Leveling Directionally Adaptive Auto High-Beam Headlamps w/Washer and Delay-Off
Rain Detecting Variable Intermittent Wipers w/Heated Jets And Reservoir
Rear Fog Lamps
Running Boards
Summer Performance Tires
Tailgate/Rear Door Lock Included w/Power Door Locks
Tires: 21"
Wheels: 21" AMG 5-Twin Spoke
Aluminum Spare Wheel
Black Bodyside Mouldings, Stainless Steel Bodyside Insert and Body-Coloured Fender Flares
Black Door Handles
Black Side Windows Trim and Black Front Windshield Trim
Body-Coloured Front Bumper w/1 Tow Hook
Body-Coloured Power Heated Side Mirrors w/Driver Auto Dimming, Power Folding and Turn Signal Indicator
Body-Coloured Rear Step Bumper w/1 Tow Hook
Clearcoat Paint
Conventional Rear Cargo Access
Cornering Lights
Deep Tinted Glass
Express Open/Close Sliding And Tilting Glass 1st Row Sunroof w/Sunshade
Fixed Rear Window w/Fixed Interval Wiper and Defroster
Front License Plate Bracket
Front Windshield -inc: Electrically Heated Glass
Full-Size Spare Tire Mounted Outside Rear
Galvanized Steel/Aluminum Panels
Grille w/Body-Coloured Bar
LED Brakelights
Laminated Glass
Perimeter/Approach Lights
Programmable Projector Beam Led Low/High Beam Daytime Running Auto-Leveling Directionally Adaptive Auto High-Beam Headlamps w/Washer and Delay-Off
Rain Detecting Variable Intermittent Wipers w/Heated Jets And Reservoir
Rear Fog Lamps
Running Boards
Tailgate/Rear Door Lock Included w/Power Door Locks
Tires: 19" All-Season
Wheels: 19" 8-Spoke
Entertainment
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
2 LCD Monitors In The Front
Bluetooth Wireless Phone Connectivity
Burmester Surround Sound System
Radio w/Seek-Scan, Clock, Speed Compensated Volume Control, Steering Wheel Controls, Voice Activation, Radio Data System, External Memory Control and Internal Memory
Radio: COMAND Navigation
Streaming Audio
Window Grid Diversity Antenna
2 LCD Monitors In The Front
Bluetooth Wireless Phone Connectivity
Burmester Surround Sound System
Digital HD Radio
Radio w/Seek-Scan, Clock, Speed Compensated Volume Control, Steering Wheel Controls, Voice Activation, Radio Data System, External Memory Control and Internal Memory
Radio: COMAND Navigation
SiriusXM Satellite Radio
Streaming Audio
Turn-By-Turn Navigation Directions
Window Grid Diversity Antenna
Interior
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
10-Way Driver Seat
10-Way Passenger Seat
2 Seatback Storage Pockets
3 12V DC Power Outlets
3 12V DC Power Outlets and 1 120V AC Power Outlet
60-40 Folding Split-Bench Front Facing Heated Manual Reclining Flip Forward Cushion/Seatback Rear Seat
AMG Performance Sport Heated Nappa Leather/Aluminum Steering Wheel w/EASY ENTRY/EXIT Auto Tilt-Away
Air Filtration
Cargo Features -inc: Cargo Partition
Cargo Space Lights
Carpet Floor Trim and Vinyl Trunk Lid/Rear Cargo Door Trim
Compass
Cruise Control w/Steering Wheel Controls
Day-Night Auto-Dimming Rearview Mirror
Delayed Accessory Power
Digital/Analog Appearance
Distance Pacing w/Traffic Stop-Go
Driver / Passenger And Rear Door Bins
Driver And Passenger Visor Vanity Mirrors w/Driver And Passenger Illumination
Driver Foot Rest
Electrically Adjustable Heated Front Bucket Seats -inc: memory function for front seats and head restraints
Engine Immobilizer
FOB Controls -inc: Windows and Sunroof/Convertible Roof
Fade-To-Off Interior Lighting
Front And Rear Map Lights
Front Centre Armrest and Rear Centre Armrest w/Pass-Thru
Front Cupholder
Full Carpet Floor Covering -inc: Carpet Front And Rear Floor Mats
Full DINAMICA Simulated Suede Headliner
Full Floor Console w/Covered Storage, Mini Overhead Console, 3 12V DC Power Outlets and 1 120V AC Power Outlet
Gauges -inc: Speedometer, Odometer, Engine Coolant Temp, Tachometer, Inclinometer, Altimeter, Turbo/Supercharger Boost, Oil Level, Oil Temperature, Trip Odometer and Trip Computer
HVAC -inc: Underseat Ducts, Residual Heat Recirculation, Headliner/Pillar Ducts and Console Ducts
Homelink Garage Door Transmitter
Illuminated Locking Glove Box
Interior Trim -inc: Piano Black/Metal-Look Interior Accents and Leather Upholstered Dashboard
Live Traffic Information
Memory Settings -inc: Door Mirrors and Steering Wheel
Mercedes me connect Wi-Fi Hotspot w/30-day complimentary trial Mobile Hotspot Internet Access
Mercedes me connect w/3-year complimentary trial Tracker System
Nappa Leather Door Trim Insert
Navigation Services
Outside Temp Gauge
Perimeter Alarm
Power 1st Row Windows w/Front And Rear 1-Touch Up/Down
Power Door Locks w/Autolock Feature
Power Fuel Flap Locking Type
Power Rear Windows and Fixed 3rd Row Windows
Power Tilt/Telescoping Steering Column
Power w/Tilt Front Head Restraints and Manual Adjustable Rear Head Restraints
Proximity Key For Push Button Start Only
Rear Cupholder
Rear HVAC w/Separate Controls
Redundant Digital Speedometer
Remote Keyless Entry w/Integrated Key Transmitter, 4 Door Curb/Courtesy, Illuminated Entry and Panic Button
Roll-Up Cargo Cover
Single-Tone Nappa Leather Seat Upholstery
Smart Device Remote Engine Start
Smartphone Integration
Systems Monitor
Trip Computer
Urethane Gear Shifter Material
Voice Activated Dual Zone Front Automatic Air Conditioning
10-Way Driver Seat
10-Way Passenger Seat
2 Seatback Storage Pockets
3 12V DC Power Outlets
3 12V DC Power Outlets and 1 120V AC Power Outlet
60-40 Folding Split-Bench Front Facing Heated Manual Reclining Flip Forward Cushion/Seatback Rear Seat
Air Filtration
Cargo Features -inc: Cargo Partition
Cargo Space Lights
Carpet Floor Trim and Vinyl Trunk Lid/Rear Cargo Door Trim
Compass
Cruise Control w/Steering Wheel Controls
Day-Night Auto-Dimming Rearview Mirror
Delayed Accessory Power
Digital Appearance
Distance Pacing w/Traffic Stop-Go
Driver / Passenger And Rear Door Bins
Driver And Passenger Visor Vanity Mirrors w/Driver And Passenger Illumination
Driver Foot Rest
Electrically Adjustable Heated Front Bucket Seats -inc: memory function for front seats and head restraints
Engine Immobilizer
FOB Controls -inc: Windows and Sunroof/Convertible Roof
Fade-To-Off Interior Lighting
Front And Rear Map Lights
Front Centre Armrest and Rear Centre Armrest w/Pass-Thru
Front Cupholder
Full Carpet Floor Covering
Full Cloth Headliner
Full Floor Console w/Covered Storage, Mini Overhead Console, 3 12V DC Power Outlets and 1 120V AC Power Outlet
Gauges -inc: Speedometer, Odometer, Engine Coolant Temp, Tachometer, Inclinometer, Altimeter, Turbo/Supercharger Boost, Oil Level, Oil Temperature, Trip Odometer and Trip Computer
HVAC -inc: Underseat Ducts, Residual Heat Recirculation, Headliner/Pillar Ducts and Console Ducts
Heated Nappa Leather/Metal-Look Steering Wheel w/EASY ENTRY/EXIT Auto Tilt-Away
Homelink Garage Door Transmitter
Illuminated Locking Glove Box
Interior Trim -inc: Piano Black/Metal-Look Interior Accents and ARTICO Leatherette Upholstered Dashboard
Leather Door Trim Insert
Leather Seat Upholstery
Live Traffic Information
Memory Settings -inc: Door Mirrors and Steering Wheel
Mercedes me connect Wi-Fi Hotspot w/30-day complimentary trial Mobile Hotspot Internet Access
Mercedes me connect w/3-year complimentary trial Tracker System
Outside Temp Gauge
Perimeter Alarm
Power 1st Row Windows w/Front And Rear 1-Touch Up/Down
Power Door Locks w/Autolock Feature
Power Fuel Flap Locking Type
Power Rear Windows and Fixed 3rd Row Windows
Power Tilt/Telescoping Steering Column
Power w/Tilt Front Head Restraints and Manual Adjustable Rear Head Restraints
Proximity Key For Push Button Start Only
Rear Cupholder
Rear HVAC w/Separate Controls
Redundant Digital Speedometer
Remote Keyless Entry w/Integrated Key Transmitter, 4 Door Curb/Courtesy, Illuminated Entry and Panic Button
Roll-Up Cargo Cover
Smart Device Remote Engine Start
Smartphone Integration
Systems Monitor
Trip Computer
Urethane Gear Shifter Material
Voice Activated Dual Zone Front Automatic Air Conditioning
Safety
Mercedes-Benz AMG G 63 2021
AMG G 63 4MATIC SUV
Mercedes-Benz G 550 2020
G 550 4MATIC SUV
360 Camera Back-Up Camera
ABS And Driveline Traction Control
Active Brake Assist with Autonomous Emergency Braking and Rear Cross Traffic Alert
Active Lane Keeping Assist Lane Departure Warning
Active Lane Keeping Assist Lane Keeping Assist
Active Parking Assist Automated Parking Sensors
Aerial View Camera System
Airbag Occupancy Sensor
BabySmart Child Seat Sensor and Rear Child Safety Locks
Blind Spot Assist Blind Spot
Collision Mitigation-Front
Curtain 1st And 2nd Row Airbags
Driver And Passenger Knee Airbag and Rear Side-Impact Airbag
Driver Monitoring-Alert
Dual Stage Driver And Passenger Front Airbags
Dual Stage Driver And Passenger Seat-Mounted Side Airbags
Electronic Stability Control (ESC)
First Aid Kit
Front Camera
Left Side Camera
Mercedes me connect w/3-year complimentary trial Emergency Sos
Outboard Front Lap And Shoulder Safety Belts -inc: Rear Centre 3 Point, Height Adjusters and Pretensioners
Right Side Camera
Side Impact Beams
Tire Specific Low Tire Pressure Warning
ABS And Driveline Traction Control
Active Brake Assist with Autonomous Emergency Braking and Rear Cross Traffic Alert
Active Lane Keeping Assist Lane Departure Warning
Active Lane Keeping Assist Lane Keeping Assist
Airbag Occupancy Sensor
BabySmart Child Seat Sensor and Rear Child Safety Locks
Back-Up Camera
Blind Spot Assist Blind Spot
Curtain 1st And 2nd Row Airbags
Driver And Passenger Knee Airbag and Rear Side-Impact Airbag
Dual Stage Driver And Passenger Front Airbags
Dual Stage Driver And Passenger Seat-Mounted Side Airbags
Electronic Stability Control (ESC)
First Aid Kit
Mercedes me connect w/3-year complimentary trial Emergency Sos
Outboard Front Lap And Shoulder Safety Belts -inc: Rear Centre 3 Point, Height Adjusters and Pretensioners
Parking Assist with Parking Pilot Automated Parking Sensors
Side Impact Beams
Tire Specific Low Tire Pressure Warning