2011 Mercedes-Benz SL-Class SL 550

2011 Mercedes-Benz SL550 — Obsidian Black Metallic, AMG Sport Package, Clean Undercarriage


Why This Car Is Special

The 2011 Mercedes-Benz SL550 sits near the top of a lineage that stretches back to the original 300SL Gullwing of 1954. The R230 generation, which ran from 2001 through 2011, was the last SL body style to use the naturally aspirated 5.5-liter V8 before Mercedes moved to a twin-turbocharged engine for the R231 that replaced it. That matters to buyers who understand the difference between a naturally aspirated V8 with linear, predictable power delivery and the boosted alternative that followed. This is the final model year of that generation, which makes a well-optioned 2011 SL550 the last, most refined expression of a body style that had been steadily improved over a decade.

This particular car is finished in Obsidian Black Metallic over a black leather interior and carries the AMG Sport Package — a meaningful option that adds visual and functional upgrades beyond the standard SL550 trim. The undercarriage photos tell a clear story: this car has been put on a lift and inspected, and what you see is a clean, dry undercarriage with no rust, no leaks, and no signs of abuse. For a car of this age, that is not guaranteed, and it is worth noting.


Features List

- 5.5L naturally aspirated V8 engine
- 7-speed automatic transmission
- AMG Sport Package
- 19-inch AMG 5-spoke wheels
- Power retractable hardtop
- Panoramic glass roof panel
- Active Body Control suspension
- AIRSCARF neck heater system
- Harman Kardon stereo
- Navigation system
- HD Radio and SiriusXM
- Dual-zone automatic climate control
- HID Xenon headlights
- Fog lights
- Keyless Go with push-button start
- Heated power seats with memory
- AMG Sport pedals
- Power-folding mirrors
- Roll-over protection system
- Wind deflector
- Illuminated door sills
- Dual exhaust with polished tips
- Disc brakes all four corners
- Burl wood interior trim
- Clean undercarriage


Mechanical

The engine under the hood of this 2011 Mercedes-Benz SL550 is Mercedes' M273 naturally aspirated 5.5-liter V8, rated at 382 horsepower and 391 lb-ft of torque in this application. Power routes through a 7-speed automatic transmission, which was a relatively recent addition to the SL550 at this point in the R230's life, offering closer gear spacing and improved response compared to the 5-speed it replaced in earlier model years.

The suspension setup on this car is the Active Body Control system, which Mercedes developed specifically for the SL and has offered since the R230's introduction. ABC uses hydraulic actuators at each wheel, fed by a high-pressure pump, to suppress body roll and maintain a level ride plane. The system reads road inputs multiple times per second and adjusts each corner independently. It is a complex system that does what it is designed to do very well, and this car's undercarriage shows no signs of ABC leaks, which are a known watch item on this platform. The front and rear suspension components visible in the photos look intact with no obvious wear or damage.

Braking is handled by disc brakes at all four corners. The dual exhaust tips exit through an AMG-style rear diffuser panel. The undercarriage itself is notably clean — no undercoating has been sprayed to hide problems, and the factory underbody panels are intact and properly fitted.


Interior

The 2011 Mercedes-Benz SL550's cabin is finished in black leather throughout, with burl wood trim running across the dashboard and continuing through the center console and door panels. The combination is understated and consistent — the same material palette from the seat bolsters to the door pulls, which gives the interior a finished, intentional look rather than a mismatched one.

The AMG Sport Package adds the drilled and ribbed aluminum AMG sport pedals visible in the footwell photos, along with the sport steering wheel with its AMG-badged lower spoke. Those are factory pieces, not aftermarket add