For nearly seventy years the Mercedes SL was the definitive grand tourer — fast enough to thrill, soft enough to cross continents. Then Stuttgart handed it exclusively to AMG, bolted on stiff springs and a four-cylinder engine, and wondered why the faithful balked. Now the company is course-correcting, and the catalyst is its own Maybach variant.
According to Autocar, the SL’s mid-cycle facelift — due next year — will reposition the entire lineup toward comfort and luxury. The move follows what one high-ranking Mercedes insider described as an “overwhelmingly positive reaction” to the Maybach SL, the plush, detuned version that launched last year and effectively told the world what SL buyers actually want. It’s a rare admission from AMG that harder isn’t always better.
The mechanical changes run deep. The much-maligned SL 43 and its 375-horsepower turbocharged four-cylinder — an engine that never belonged in a car wearing an SL badge — is being killed off. In its place comes a new SL 53 powered by a revised 3.0-liter turbocharged inline-six making roughly 449 horsepower. That alone restores a measure of dignity to the entry point of the range.
Higher up, both the SL 55 and SL 63 will swap their current cross-plane crank V-8s for the flat-plane crank unit recently introduced in the updated S-Class S580. The SL 55 should produce around 537 horsepower, while the SL 63 climbs to nearly 650 — a meaningful jump from today’s 577. The range-topping Maybach SL 680 would use the same engine in a slightly softer 612-horsepower tune. Every variant will be a mild hybrid with a starter-generator ahead of the nine-speed automatic.
One notable casualty: the plug-in hybrid SL 63 S E Performance may not survive the transition. Insiders suggest it could be axed entirely, a concession that the complexity and weight of the PHEV system don’t align with the car’s new identity.
The chassis will be retuned to prioritize ride quality over track-day reflexes. That’s the real story here — not the power figures, but the philosophy. Since the R232 generation launched in early 2022, the SL and the fixed-roof AMG GT have shared a platform, chassis, drivetrain, and electrical architecture.
They were effectively the same car with different rooflines, which made neither one fully convincing. The facelift aims to put genuine daylight between the two.
The exterior gets a freshening with star-shaped light graphics matching recent Mercedes models. Inside, the SL adopts the MB.OS operating system, a new display layout, and a redesigned steering wheel. Standard facelift fare, but it signals the car is being pulled into the broader Mercedes-Benz luxury ecosystem rather than remaining an AMG outlier.
The irony is thick. Mercedes spent years listening to automotive journalists who complained the SL was too soft, too boulevardier, too removed from its 300 SL racing heritage. So the company made it an AMG-only product, stiffened it up, gave it a four-banger, and watched Maybach prove the journalists wrong.
The SL’s buyers were never chasing lap times. They wanted effortless speed wrapped in elegance — exactly what the nameplate delivered for decades before someone in Affalterbach decided it needed sharper edges. That Mercedes needed the Maybach experiment to rediscover this says as much about the company’s recent identity crisis as it does about the car itself.
The updated SL should arrive in 2027. It will be softer, more powerful, and finally honest about what it is.
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