The four-door Mercedes-AMG GT is finally here | Top Gear
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Wednesday 22nd March
Geneva Motor Show

The four-door Mercedes-AMG GT is finally here

Near 200mph four-door coupe replaces CLS 63 as Merc's fast, swoopy semi-practical thing

Published: 06 Mar 2018

To dismiss AMG’s new ‘GT four-door Coupe’ as a CLS 63 in all but name – which, let’s face it, you’re doing right now – is to do it a massive disservice. Because even though AMG isn’t going to 63 the new CLS, when it goes on sale in September this thing will effectively occupy that space in Mercedes’ line-up. A four-door coupe with many horsepowers, designed to give Audi, Porsche and BMW and their best efforts – the RS7, Panamera and M8 GC – debilitating migraines.  

In the vain of the SLS and AMG GT, what we’re looking at here is a car “independently developed by Mercedes-AMG”, not a hotted-up version of an existing Mercedes. So while it may look like the CLS, study the two side-by-side and you’ll easily spot the differences.

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You’ll see the GT has different headlights, that there’s a kink in the GT’s beltline where the CLS’s is flat, and that the GT’s roofline tapers more smoothly because it – unlike the CLS – is a hatchback. Underneath too. This, the CLS and E-Class share a platform, but under the GT lies much bespokery. Its track is wider than the CLS’s, its wheelbase is shorter and there’s much in the way of, erm, suspension

The engine and drivetrain – a twin-turbocharged 4.0-litre V8, 4Matic all-wheel drive and nine-speed automatic gearbox – are borrowed from the E63. Like the E63 there will be S and non-S versions – the former gets more power (630bhp/664lb ft plays 577bhp/590lb ft) and ‘drift mode’ as standard (interestingly, it's optional on other models too). 

But this time around there will also be an inline six-cylinder ‘GT 53’, which uses 48-volt electrics and an electric compressor to support a large, conventional turbo for 429hp. Brits are only getting the V8s for now, and much as the 53 engine impressed when we tried it in a CLS, that’s just fine with us…

The most potent GT four-door – the AMG GT 63 S – claims 0-62mph in 3.2 seconds and a faintly ridiculous 196mph, despite its more-than two tonne heft. For the non-S it’s 3.4 seconds and a paltry 193mph, and the 53 4.5 seconds and 177mph.

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GT 53s get conventional steel springs, and 63s ride on a version of Mercedes' three-chamber air suspension that promises "outstanding agility and racetrack-ready driving dynamics". V8s get four-wheel steering as standard too. All models get a pop-up rear spoiler and other active aero designed to keep the GT a) cool and b) stuck to the tarmac. S-Class grade driver assistance systems are available - should, for some reason, you not want to actually drive your big, shouty AMG.

Inside the AMG GT four-door Coupe is a lot like the regular AMG GT. Only with more seats. Four or five in total, depending on whether you opt for the rear bench or "High-Class variant" that adds a touchscreen for controlling infotainment features. Up front, the twin, 12.3in screens will look familiar. This is the same setup Merc uses in the E, CLS and S - only here there's an extra 'Supersport' mode for the instruments that gives "AMG-specific" information, like a gear-change indicator. Those switches on the centre console are actually little capacitive TFT screens - which is quite cool if needless. On the steering wheel too - there are many buttons to begin with, but if you need MORE you can specify two little controllers for cycling though drive modes and so on. These too are colour TFTs. A special 'Track Pace' app in the infotainment system gives access to laptimes and other telemetry. 

On a practical level - the boot is 395 litres, expandable to 1,324 if you flip the seats down. 

Prices are TBC, but expect six fairly large figures. Panamera Turbo S E nutter Hybrid thingy – your time has come.

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