Find a car review

Make
Model

Mercedes AMG GT review - is this the Porsche 911's biggest threat? - Engine and gearbox

An all round incredible package. Full video review included

Evo rating
Price
from £96,845
  • Styling, dynamics and drivetrain
  • Steering feels nervous and a bit remote

Engine and Gearbox

The M178 engine is the dry-sumped brother of the M177 engine found in Mercedes’ new C63. That means it has a displacement of 3982cc and the V8 has two turbochargers residing in the middle of the 90 degree V. In more powerful S form, the outputs are 503bhp at 6250rpm and 479lb ft of torque from 1750 to 4750rpm.

The main reason for moving away from the old naturally aspirated 6.2-litre V8 found in the SLS is of course the industry-wide drive to lower emissions. As such, the AMG GT S’s new turbocharged unit returns a claimed 30.1mpg on the combined cycle although in our experience you would have to be extremely restrained to achieve that. 

Subscribe to evo magazine

If you're passionate about the world's greatest performance cars, experience the thrill of driving with evo magazine. Try your first 5 issues for £5.

On both road and track the performance of the AMG GT S never feels anything less than ballistic. Despite being turbocharged, the throttle response is fantastic, punching you out of every corner and actually matching the alacrity of the handling. The V8 then hauls with an unrelenting ferocity down the straights, reeling in the horizon in an almost surreal fashion. With the exhaust button pressed, all this is of course overlaid with a soundtrack that gargles blood and thunder like some sort of tetchy Norse god.

Where fast Mercedes of the past have often fallen a little short is in the gearshift. However, AMG has got it sorted with the GT. The seven-speed dual-clutch ‘box now cracks through upshifts as smartly as you like, but more importantly it will also down-shift when you ask it to. It still can’t quite match a Ferrari ‘box for overall downshift speed and theatre but the mere fact we’re comparing it to that means it is a huge step on.

Advertisement
Advertisement

Most Popular

Visit/best-cars/201772/best-v8-cars-past-and-present-our-favourite-eights-and-the-cars-theyre-found-in
Best cars

Best V8 cars past and present – our favourite eights and the cars they’re found in

Whether it’s smooth and sophisticated or motorsport-like in its aggression, the V8 remains one of our favourite engine types, warts and all
20 Sep 2019
Visit/spy-shots/201770/porsche-cayman-gt4-rs-spied-718-to-receive-rennsport-treatment
spy shots

Porsche Cayman GT4 RS spied – 718 to receive Rennsport treatment

More power, more aero and less weight are already on the cards for Stuttgart’s fastest Cayman
19 Sep 2019
Visit/hyundai/i30-n-hatchback/201775/hyundai-i30-n-versus-hyundai-i30-tcr
Hyundai i30 N hatchback

Hyundai i30 N versus Hyundai i30 TCR

Can evo magazine’s Dickie Meaden beat Steve Sutcliffe in a straight(ish) race? We sent them to the Circuit Nuvolari with a pair of Hyundai i30 Ns to f…
20 Sep 2019
Visit/features/22872/goodyear-eagle-f1-supersport-the-toughest-test-advertisement-feature
Advertisement Feature

Goodyear Eagle F1 SuperSport (advertisement feature)

We went to Bedford Autodrome to find out what evo readers think of Goodyear’s new Eagle F1 SuperSport Ultra Ultra High Performance tyres
10 Jul 2019