New Mercedes-AMG GT 63 S and 73 hybrid teased: price, specs and release date

Ryan Hirons
March 03, 2021

The new Mercedes-AMG GT 63 4-door has been spotted testing while the even faster, hybrid 73 version has been teased. Read on for full details on this V8-powered four-door supercar.

  • Subtle styling tweaks
  • Will retain 4.0-litre twin-turbo V8
  • New hybrid-powered 73 model spotted
  • Reveal expected in May 2021
  • Likely on sale around August 2021
  • Expected to cost from £140,000

The Mercedes AMG GT 63 4-door is due a mid-life refresh to help it keep pace with the likes of the Audi RS7, the new BMW M8 Gran Coupe and the recently revised Porsche Panamera. The new car is expected to be revealed around May 2021 and could go on sale as early as August 2021. A hybrid ’73’ version will join the line-up later on.

New Mercedes AMG GT 73 4-door teased

No more info on the 73 has been reelased, but at least you can get another look at a camouflaged prototype

Fresh teasers of the upcoming Mercedes AMG GT 73 hybrid have been released alongside Mercedes’ new F1 car.

Much like the prototypes shown below, there’s very little giving away that this is a 73 — though the thick red and grey camouflage and blanked-off Mercedes badge hints this is definitely not a standard AMG GT 63 four-door.

New Mercedes AMG GT 73 4-door spotted

Little about this prototype tells you it’s a 73, but there’s one crucial difference…

It’s long been rumoured that a plug-in hybrid version of the AMG GT 4 door, dubbed the 73, would be joining the GT 4-door lineup — and now prototypes of that car have been spotted.

Visually, there isn’t much at all to separate the AMG GT 73 4-door prototype from the 63, though the camouflage at the rear of the car hides a crucial flap that houses the charging port.

There’s a flap at the rear hiding the charging port

It’s expected the 73 will use the same 4.0-litre twin-turbo V8 as the 63, linked up to an electric motor to produce a monstrous 800hp. The model will be an alternative to the Porsche Panamera Turbo S E-Hybrid and it’s possible the 73’s hybrid setup will make its way to other AMG-badged cars in the future. One potential host for it would be a version of the ultra-luxurious S-Class.

New Mercedes AMG GT 63 4-door design

New air intakes are likely to feature on the updated AMG GT 63 4-door’s front bumper.

In terms of exterior design, the new AMG GT 63 4-door prototype looks practically identical to the current car. At the front, it has the same slotted grille but the lower half of the front bumper has been disguised in a camo-wrap, so it’s possible its large air intakes have seen some tweaks.

Nothing has changed on the rear of this prototype’s.

The new model has retained the current car’s bulging bonnet, wide front and rear wheel arches and dramatic arching roofline. The rear end looks to be fairly untouched too, with its broad LED rear lights and large quad-exhaust tips still in place.

New Mercedes AMG GT 63 4-door engine

The AMG GT 63 4-door will come with the same 4.0-litre twin-turbo V8 as the current car. 

The current Mercedes-AMG GT 63 4-door’s heart is a monstrous 4.0-litre twin-turbocharged V8 engine. That’ll be carried over into the new car, along with the nine-speed automatic gearbox and Mercedes’ 4MATIC four-wheel-drive system.

Watch our drag race to see how the AMG GT 4-door compares with an Audi RS7

The engine is currently offered in two different packages – the GT 63 with 585hp, and the range-topping GT 63 S with 638hp. The new car will likely retain both options.

Mercedes AMG GT 63 4-door interior

The new car’s cabin should look very similar to the current model’s, shown here. 

The new AMG GT 63 4-door’s interior hasn’t been spotted yet, but don’t expect any radical changes. It’ll almost certainly retain the old car’s design but should feature a few software updates for the dual-screen infotainment system.

Mercedes AMG GT 63 4-door price and release date

A leaked image (uploaded to the photo-hosting website ‘imgbb’ by an anonymous user) appears to show the on-sale date of seven new Mercedes models in 2021, including the new AMG GT 63 S four-door.

It looks as though the new car will be revealed in May, and could go on sale in August 2021. It’s possible this date only applies to future 63 models, with 73 versions coming later, however.

In the UK, the AMG GT 63 S 4-door costs from £140,000 – this new model isn’t expected to cost significantly more than that. Expect a hefty premium for 73 versions of the car, however.

Can’t wait for the new car to go on sale? Watch our in-depth Mercedes-AMG GT 63 4-door review for everything you need to know about the current car or compare the latest Mercedes-AMG GT 63 4-door deals.

Want to keep up to date with the latest news?

Sign up for the carwow newsletter by entering your email address below to receive regular updates featuring our latest videos, reviews, news stories and blog posts from across the world of cars. You can unsubscribe from these emails at any time.

By clicking the submit button you agree to our T&Cs and confirm you have read our Privacy Policy.