Mercedes-AMG GLS 63 and GLE 63 S get new flat-plane-crank V8

Empty Tank news team

June 18, 2026

Mercedes-AMG GLS 63 and GLE 63 S get new flat-plane-crank V8

The biturbo 4-litre V8 produces 603 hp and 627 lb.-ft. of torque in the 2027 Mercedes-AMG GLE 63 S and GLS 63.

2027 Mercedes-AMG GLE 63 S Coupe and 2027 Mercedes-AMG GLS 63 — *The 2027 Mercedes-AMG GLE 63 S (left), here in coupe form, and the GLS 63 have a new flat-plane crank V8 engine. – Mercedes-Benz photo*

The good folks in Affalterbach, Germany, the home of Mercedes-AMG, have created something fun for lovers of Mercedes-Benz SUVs to salivate after.

The company revealed new top-of-the-performance-line AMG GLE and GLS models motivated by a new biturbo 4-litre V8 engine with a flat-plane crankshaft.

The motor, named M177 EVO, produces 603 hp and 627 lb.-ft. of torque. That gives the new models the same power as their predecessors while reducing fuel consumption and remissions.

The newly unveiled models include the 2027 Mercedes-AMG GLE 63 S 4MATIC+, which is available in SUV and coupe body styles, and the 2027 Mercedes-AMG GLS 63 4MATIC+.

The motor receives electrified support in the form of an integrated starter generator (ISG 2.0) and a 48-volt electrical system, which offers up to 23 hp and 151 lb.-ft. of torque.

2027 Mercedes-AMG GLE 63 S Coupe engine — *The new V8 is more efficient than the former engine. – Mercedes-Benz photo*

Fuel consumption ratings, based on the WLTP test cycle are:

GLE 63 S SUV – 13.6 to 13.2 L/100 km
GLE 63 S Coupe – 13.4 to 13.1 L/100 km
GLS 63 SUV – 13.7 to 13.4 L/100 km

2027 Mercedes-AMG GLS 63 driving — *The 2027 Mercedes-AMG GLS 63 is large and quick off the line. – Mercedes-Benz photo*

Performance figures

Mercedes-Benz provided some performance figures for the new models.

The GLE 63 S gets from zero to 100 km/h in 3.9 seconds while the GLS 63 does it in 4.2 seconds.

They have a top speed of 280 km/h.

2027 Mercedes-AMG GLE 63 S Coupe driving rear — *The 2027 Mercedes-AMG GLE 63 S Coupe is built to be agile and quick. – Mercedes-Benz photo*

Sporty handling

The GLS is the automaker’s largest SUV, the S Class of SUVs if you will, and the GLE is the company’s midsize SUV, which also offers loads of interior space.

Even so, Mercedes-AMG set out to make both agile.

The company said the models are equipped with AMG Active Ride Control for active roll stabilization, reducing body roll in corners and creating stable and precise handling dynamics.

The SUVs’ AMG Ride Control+ air suspension with adaptive damping constantly adapts to the driving situation.

2027 Mercedes-AMG GLS 63 top-down view — *The 2027 Mercedes-AMG GLS 63 has an air suspension that can raise the SUV up and down depending on need. – Mercedes-Benz photo*

It can also raise the GLS and GLE’s ride height, based on need. For example, a Trail drive model raises the SUVs 2.2 inches higher, while Sport and Sport+ lowers the ride height by 0.4 inches.

The sporty SUVs are also luxurious, so you can expect all the usual premium Mercedes-Benz appointments on the inside out and .

The GLE 63 S and GLS 63 are launching for the 2027 model year.

Canadian market details such as price were not provided.

For updates, visit the Mercedes-Benz Canada website.