Mercedes-AMG SL goes back to Benz for GT-flavoured makeover
Official details are yet to be revealed, although the V8 looks set to produce around 604bhp in the SL63 AMG 4Matic+, with a similar output planned for the updated Mercedes-Maybach SL680.
A further SL580 model, using a 530bhp version of the V8, has been mooted but is yet to receive production approval.
The rapid but rare SL63 S E Performance, which uses an 805bhp plug-in hybrid drivetrain combining the twin-turbocharged V8 with a rear-mounted electric motor, is being discontinued.
Both the facelifted SL and GT will adopt Mercedes-Benz’s new MB.OS operating system, together with updated driver-assistance technology and revised interior controls, including a redesigned steering which introduces revised physical controls.
For the SL, exterior changes will include new headlights incorporating three-pointed-star daytime running lights and indicators, along with the latest Digital Light system.
New GT Black Series under development
Mercedes-AMG is also developing a new GT Black Series, internally designated X192 rather than the C192 code used by the regular GT coupé.
The different designation points to extensive engineering changes, with reports suggesting it will receive a carbonfibre monocoque and body structure as well as a return to a transaxle drivetrain layout, placing the gearbox at the rear as on the original Mercedes-AMG SLS and GT Black Series models.
The new range topping GT model will use a dry-sump version of AMG’s flat-plane-crank V8, with output tipped to exceed the 720bhp of its predecessor.
Side-exit exhausts ahead of the rear wheels will allow a larger rear diffuser. Other developments include adjustable ride height for circuit use, active front wheel arch vents and a large rear wing with drag-reduction functionality. Mercedes-Benz insiders suggest the extensive aerodynamic modifications will meet the relevant road-homologation requirements, allowing the car to be registered for road use despite its track-focused aerodynamic package.
It will also use Michelin Pilot Sport Cup 2 R tyres measuring 325/35 ZR20 at the front and 355/30 ZR21 at the rear.
The GT Black Series is being developed alongside Mercedes-AMG’s next-generation GT3 racing car. Both were previewed by the Concept AMG GT Track Sport revealed in 2025.
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