0 - 62 mph4s

EC Combined (mpg)

EC Combined24.4 mpg

The SUV segment is a profitable niche for car makers - and the high performance end of it even more so. Here's a revised version of the model that claims to rule the mid-sized part of that segment, the thunderous V8-powered Mercedes-AMG GLC 63.


The Mercedes-AMG GLC 63 4MATIC+ is the quickest mid-sized SUV you can buy. Jonathan Crouch takes a look at the revised version.

Ten Second Review

The SUV segment is a profitable niche for car makers - and the high performance end of it even more so. Here's a revised version of the model that claims to rule the mid-sized part of that segment, the thunderous V8-powered Mercedes-AMG GLC 63.


No other brand has more experience in high performance SUVs like this one, the Mercedes legacy in this market niche dating back to 1999 and the fast but rather wayward ML55. The company's AMG tuning division in Affalterbach has got rather better at producing go-faster versions of Mercedes products since then - they're now good for corners as well as straight lines - and it really shifted up a gear with the introduction of the 4.0-litre V8 we first saw in the AMG GT performance sportscar in 2014. Since then, that twin turbo engine has been fitted into a variety of Mercedes-AMG products, including the C63 and E63 models that share much of their engineering with this top GLC. Here, it can put out as much as 510hp and a thumping 700Nm of torque, that latter figure enough to embarrass this car's most direct segment competitors, the Porsche Macan Turbo and the Alfa Romeo Stelvio Quadrifoglio. Quite a prospect. Let's put this car to the test.

Driving Experience

The world may not need a mid-sized SUV with around 500hp, but you might - and if you do, then this Affalterbach-engineered AMG model is a tempting lottery-winner's confection. It uses much the same 4.0-litre twin turbo V8 that you'll find in the AMG GT sportscar, which aurally is on another level from the V6 engines you'll find in direct rivals. Here, this powerplant puts out either 476hp or 510hp, depending on your choice between standard or 'S'-spec versions of the two body styles on offer, the boxier 'SUV' variant or the trendier 'Coupe' body shape. Whatever your preference, you get 4MATIC+ 4WD and a 9-speed 'AMG SPEEDSHIFT MCT' auto gearbox with an in-built 'RACE START' function. Use this and your kidneys will be thrust to the back of your rib cage as this car hurls itself forward from rest, reaching 62mph in just 4.0s in the standard GLC 63 - or 3.8s in the GLC 63 S model. But this car has more to offer than just straight line speed. Depending on the engine, up to six drive programs are now available with this revised model: "Slippery", "Comfort", "Sport", "Sport+", "Individual" and (on the 'S' model) "RACE". Intuitive cornering assistance is delivered by the standard rear limited slip differential, which is mechanically-operated in the standard GLC 63 and electronically-driven in the 'S' variant. The steering's more feelsome than we were expecting it to be too - though the rack still doesn't have the feedback you'd get from a rival Porsche Macan Turbo. Three-chamber air springing and adaptive adjustable damping comes as standard, but it's a very firm set-up, even if you keep the car in the softest of its three available damping modes. Potential buyers will have to decide whether or not they can live with that. As usual with a Mercedes model, there's a 'DYNAMIC SELECT' driving modes system that allows you to tweak steering feel, throttle response, gearshift timings and the throaty sound of the optional AMG performance exhaust.

Design and Build

Get one of these bearing down in the fast lane upon you and you'd scuttle over pretty quickly. Whether you choose your GLC 63 in this SUV guise or in its alternative Coupe form, it's a mean-looking beast. The lesser V6-engined Mercedes-AMG 43 4MATIC model could easily be mistaken for an ordinary GLC with sporty 'AMG Line' trim, but from a glance at this V8 variant, you know you're dealing with a different thing entirely. Especially in this revised guise, which features highlights and tail lamps, smarter twin tail pipe trims and the option of huge 21-inch wheels. Otherwise, things are much as before. The wide 'jet wing'-inspired front apron with huge lower corner finned cut-outs is one component in this '63' model's visual differentiation from the less GLC '43' model, but the main thing that enhances this '63' variant's added status is a distinctive styling feature that until recently was reserved for the AMG GT sportscar - the 'Panamerica' front grille. And at the wheel? well if you're wavering between this car and Affalterbach's more conventional C 63 model, then this is where the GLC V8 will probably sell itself to you. You know of course that this SUV's high-set stance will put it at a disadvantage to an ordinary performance saloon or estate when it comes to weight transfer and cornering agility, but somehow, it's hard to resist the allure of such a commanding driving position. This revised version gets an AMG version of the more advanced MBUX infotainment system and, on the 'S' model, a smarter new AMG steering wheel with touch-sensitive controls. There's more space in the back that you'd get in the C 63 Estate model that the magazine experts will recommend you choose instead - and more boot room too, with 550-litres in the SUV and 500-litres in the Coupe.

Market and Model

Of course, you won't be expecting a car of his calibre to be inexpensive - and this one is predictably pricey, the base 'GLC 63 4MATIC+' version requiring a £75,000 budget in standard 476bhp guise. But why would you want that when just over £11,000 more would get you the uprated 510bhp 'GLC 63 S 4MATIC+' model with 510hp and 700Nm of torque, enough - just - to give you the power-bragging rights over any upstart rival. Add in a few well chosen extras to this variant and you could easily be looking at pushing its £86,000 asking price up to around £90,000. If you want something even more fashionable than this standard bodystyle, Mercedes also offers this same car in both its forms with the GLC Coupe bodyshape, for around £2,500 more. Either way, you're probably going to be looking at paying around twice what you'd have to find for an ordinary entry-level diesel-powered GLC model. Still, if you've developed a brand that's built itself a reputation for creating some of the world's most desirable performance cars, then to some extent you can almost name your price when it comes to what they cost.

Cost of Ownership

You won't expect the running costs of a 4.0-litre petrol-powered V8 SUV weighing two tonnes to be inexpensive. Nor are they here. Still, just imagine how bad they would have been with the old-school 5.5 and 6.2-litre V8s that AMG used to use. This GLC 63's twin turbo 4.0-litre V8 is much more advanced than those two old-school engines and on a long easy highway cruise, you might actually be surprised at just how many miles you can get out of it before there's a need to brush your brogues on a filling station forecourt. Let's get to the figures, which see the standard 476hp SUV model on 19-inch wheels return 24.4mpg on the combined cycle and 265g/km. For the Coupe, the figures are only fractionally altered - 24.6mpg and 262g/km. The readings you get for the 510hp 'S' model aren't much different and vary mainly because of this variant's inclusion of larger 20-inch wheels. For the SUV 'S' derivative, you're looking at 23.7mpg and 270g/km. For the 63 S Coupe, the figures are 24.1mpg and 267g/km. Whatever the version chosen, these readings combined with the 66-litre fuel tank would give you a motorway range of about 400 miles - which is poor without being embarrassing. Of course, away from the motorway, you'll probably struggle to get anywhere near these figures if you use this car as its designers intended. And should you ever take it on a track, you'll probably struggle to average 10mpg.


Critics of course are lining up to snipe at this car for its weight, its prodigious thirst and what in their eyes is a misguided sense of automotive fashion. It tries, they'll tell you, to be five cars in one - SUV, estate, performance sportscar, luxury saloon and, in its alternative form, coupe as well. Yet ends up hitting none of these marks satisfactorily. To some extent, that's true, but it's quite a thing to watch this model strive to reach such an impossible objective. And get surprisingly close to meeting it. Whether it's worth paying double the cost of an ordinary GLC to enjoy such a performance is a decision only you can make. Perhaps the bigger picture here though is that in a world of eco technology and global warming, the days of the big V8-powered SUV must inevitably be numbered. If funds permit and you like what Mercedes has tried to do here, we'd suggest that you buy one - and enjoy it while you can.

  • Rear wiper
  • Rain sensor windscreen wipers
  • Tinted glass all round
  • Electric windows one touch open/close
  • Heated windscreen washers
  • Privacy glass (to rear of B post)

  • Brake calipers in silver
  • Electronic parking brake
  • Anti-slip regulation
  • Anti lock brake system with Brake Assist
  • Hill hold function
  • AMG high performance braking system
  • Adaptive brake system
  • ESP curve dynamic assist

  • Black floor mats

  • Air body control air suspension for front and rear axles with continuously adjustable damping

  • Bluetooth interface for hands free telephone

  • Attention assist
  • Active park assist with parktronic system
  • Traffic sign recognition
  • Collision prevention assist plus
  • Crosswind Assist
  • DYNAMIC SELECT with a choice of driving modes (ECO, Comfort, Sport, Sport+ and Individual)

  • Power opening/closing tailgate
  • Touch pad controller for infotainment system
  • Remote boot release

  • Multi function trip computer
  • Outside temperature gauge
  • Service indicator (Active Service System)
  • Instrument cluster with 5.5-inch TFT multi-function display
  • 8.4" high resolution display
  • COMAND online nav with colour display, radio/CD/DVD/MP3, SD card, 10GB music, Emergency Call system, speed limit assist, linguatronic voice control
  • Mercedes connect me with remote online services

  • Electrically adjustable and heated door mirrors

  • Artico man-made leather dashboard

  • 66 litre fuel tank

  • Frontbass loudspeakers
  • 5 speakers
  • DAB Digital radio
  • USB connection

  • Chrome exterior trim
  • Body coloured bumpers
  • High gloss chrome vertical panamericana grille with black louvres
  • AMG bodystyling front aprons, side skirts and rear aprons with diffuser fins
  • Badging - V8 BITURBO 4MATIC+ lettering on front wings

  • Automatic headlights
  • LED rear lamps
  • Adaptive brake lights
  • Range adjustable headlights
  • LED daytime running lights

  • Automatic climate control

  • Aluminium gear shift paddles
  • Front armrest with storage box
  • Easy-pack load compartment cover
  • 2 cupholders in front centre console
  • Sports pedals with stainless steel surfaces and rubber studs
  • Dividing net - rear
  • Lockable/illuminated glovebox
  • Nappa leather upholstery
  • Black roof lining
  • 3 spoke flat bottom multi-function AMG performance steering wheel in nappa leather
  • Front door sills with AMG lettering

  • Ambient lighting

  • Interior lighting pack - GLC
  • Mirror pack - GLC
  • Storage pack - GLC
  • Memory pack - GLC

  • Active bonnet
  • Front and rear seatbelt reminder
  • 3 rear 3 point seatbelts
  • Window airbags
  • Drivers knee airbag
  • Warning triangle and first aid kit
  • Dual stage Driver/Passenger Airbags
  • Tyre pressure monitoring system
  • Child proof door locks
  • Black seat belts
  • Front passenger seat occupancy sensor
  • Front side airbags

  • Heated front seats
  • Auto Mercedes-Benz child seat recognition sensor
  • Electric front seat height adjustment
  • 4 way adjustable front head restraints
  • Rear top tether child seat ISOFIX attachment
  • 2 way rear head restraints
  • 4 way electric lumbar support for driver and front passenger
  • 40:20:40 split folding rear seats

  • Keyless Start
  • Remote central locking
  • Alarm system/interior protection/immobiliser
  • Automatic door locking

  • AMG rear axle limited slip differential lock

  • Sunvisors with illuminated vanity mirrors

  • Tyre inflation kit

  • Noise Level dB(A): 71
  • CO: 0.39
  • HC: 0.068
  • NOx: 0.016
  • HC+NOx: N
  • Particles: 0
  • CO2 (g/km): 265
  • Standard Euro Emissions: EURO 6

  • Cylinders: 8
  • Cylinder Layout: V8
  • Number of Valves: 32
  • Camshaft: DOHC
  • Fuel Delivery: TWIN TURBO
  • Catalytic Convertor: True
  • Engine Layout: NORTH SOUTH
  • Compression Ratio: 10.5:1
  • Transmission: SEMI-AUTO
  • Gears: 9 SPEED
  • Cylinders - Bore (mm): 83
  • Cylinders - Stroke (mm): 92
  • CC: 3982

  • EC Directive 1999/100/EC Applies: True
  • EC Urban (mpg): 17
  • EC Extra Urban (mpg): 30
  • EC Combined (mpg): 24.4
  • WLTP - MPG - Low: 14.1
  • WLTP - MPG - Medium: 23.9
  • WLTP - MPG - High: 27.4
  • WLTP - MPG - Extra High: 24.8
  • WLTP - MPG - Comb: 23.2
  • WLTP - MPG - Comb - Min: 23.2
  • WLTP - MPG - Comb - Max: 22.1
  • WLTP - FC (l/100km) - Low: 20
  • WLTP - FC (l/100km) - Medium: 11.8
  • WLTP - FC (l/100km) - High: 10.3
  • WLTP - FC (l/100km) - Extra High: 11.4
  • WLTP - FC (l/100km) - Comb: 12.2
  • WLTP - FC (l/100km) - Comb - Min: 12.2
  • WLTP - FC (l/100km) - Comb - Max: 12.8

  • Generation Mark: 1
  • Alternative Fuel Qualifying: False
  • Did at least one aspect of this vehicle's safety give cause for concern?: False
  • Special Edition: False
  • Special Order: False
  • Based On ID: N
  • Insurance Group 1 - 50 Effective January 07: 46E
  • Service Interval Mileage: 12500
  • NCAP Adult Occupant Protection %: 95
  • NCAP Child Occupant Protection %: 89
  • NCAP Pedestrian Protection %: 83
  • NCAP Safety Assist %: 71
  • NCAP Overall Rating - Effective February 09: 5
  • Badge Power: 476
  • Badge Engine CC: 4.0
  • Vehicle Homologation Class: M1
  • Coin Series: AMG
  • Coin Description: N
  • Standard manufacturers warranty - Years: 3
  • Standard manufacturers warranty - Mileage: 999999
  • Manufacturers Paintwork Guarantee - Years: 3
  • Manufacturers Corrosion Perforation Guarantee - Years: 30

  • Engine Power - KW: 350
  • Engine Power - RPM: 5500
  • Engine Torque - LBS.FT: 479
  • Engine Torque - NM: 650
  • Engine Torque - RPM: 1750
  • Engine Power - BHP: 476
  • Engine Power - PS: True
  • 0 to 60 mph (secs): False
  • 0 to 62 mph (secs): 4
  • Top Speed: 155
  • Engine Torque - MKG: 66.3

  • Emissions Test Cycle: NEDC Correlated

  • Alloys?: True
  • Space Saver?: False
  • Tyre Size Rear: 255/50 R19
  • Tyre Size Spare: TYRE REPAIR KIT
  • Wheel Type: 19" ALLOY
  • Tyre Size Front: 235/55 R19
  • Wheel Style: 10 SPOKE

  • Width (including mirrors): 2096
  • Height: N
  • Height (including roof rails): 1620
  • Length: 4682
  • Width: 1931
  • Wheelbase: 2873

  • Minimum Kerbweight: 2000
  • Gross Vehicle Weight: 2580
  • Fuel Tank Capacity (Litres): 66
  • Luggage Capacity (Seats Up): 550
  • No. of Seats: 5
  • Max. Towing Weight - Braked: 2170
  • Max. Towing Weight - Unbraked: 750
  • Max. Loading Weight: 580
  • Max. Roof Load: 75
  • Luggage Capacity (Seats Down): 1600
  • Turning Circle - Kerb to Kerb: 12.1

  • Speed sensitive steering: Included
  • Reversing camera: Included
  • Cruise control with speedtronic variable speed limiter: Included
  • 360 degree camera: £335

  • Head up Display: £825

  • Body colour door mirrors: Included

  • High gloss black with aluminium trim: Included
  • AMG carbon-fibre with aluminium trim: £545
  • Open pore black ash wood/light longitudinal grain aluminium: £195

  • Metallic paint: £685
  • Aluminium roof rails: Included
  • Solid paint: Included
  • Designo metallic paintwork: £895
  • Stainless steel running boards with rubber studs: £450
  • AMG Performance exhaust: £1,000
  • AMG sports exhaust system with two twin black-chrome tailpipes: Included
  • AMG spoiler lip in body colour: Included

  • LED Headlights: Included
  • Intelligent LED headlight system with active cornering lights with adaptive high beam assist plus: £545

  • AMG Driver's package - GLC: £2,755
  • AMG Night pack - GLC 63 Estate: £585
  • Air-balance pack - GLC: £350
  • Driving assistance package - GLC: £1,695
  • Lane tracking pack - GLC: £595
  • AMG exterior carbon fibre pack 2 - GLC: £1,260

  • Metallic - Mojave silver: £685
  • Metallic - Selenite Grey: £685
  • Metallic - Iridium silver: £685
  • Metallic - Cavansite blue: £685
  • Metallic - Brilliant blue: £685
  • Metallic - Obsidian black: £685

  • Solid - Black: £0

  • Designo metallic - Diamond white: £895
  • Designo metallic - Hyacinth red: £895

  • AMG performance seats: £1,405
  • AMG sports seats: Included

  • Electric fully towbar with 13-pin socket: £750

  • Nappa leather - Platinum white: £0
  • Nappa leather - Red pepper: £0
  • Nappa leather - Black: £0

  • 20" AMG 5 twin spoke alloy wheels painted in Matt black with high sheen finish: £0
  • 19" AMG 10 spoke alloy wheels painted in Titanium grey with high sheen finish: Included
  • 20" 5 twin spoke light alloy wheels painted in titanium grey and with high sheen finish: £595
  • 21" AMG cross spoke forged wheels painted in titanium grey with high sheen finish: £2,250
  • 21" AMG cross spoke forged wheels painted in black with high sheen finish: £2,500

Whilst every effort is made to verify and ensure the accuracy of the data, the information should only be used as a guide and no purchasing decision should be made without verification of the data from either the manufacturer or franchised dealer. Our offers may be on a different model year to that represented by this data and so specification may differ accordingly.

Lex Autolease
Leasing Broker Federation

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