Autoblog and Yahoo may earn commission from links in this article.The R230 Mercedes-Benz SL55 AMG pairs a supercharged V8 with a folding hardtop and genuine grand-touring luxury, and it has become one of the great performance bargains. This 2006 example is a black-on-black car with the rare AMG Performance Package and extensive service history. It is on Cars and Bids at $7,000 with five days to go.2006 Mercedes-Benz SL55 AMGCars & BidsWhat it's worth right nowThe R230 SL55 spans a wide market depending on mileage, condition, and options. According to Classic.com and current listings, typical 2006 SL55 AMG examples generally trade from around $18,000 into the $40,000s, with low-mileage, well-optioned cars at the upper end and the nationwide average around $34,000.AdvertisementAdvertisementThis car's rare AMG Performance Package and extensive documented service are genuine strengths. The high 86,900 miles, cosmetic needs, and the emissions question detailed below place it in the lower part of that range.2006 Mercedes-Benz SL55 AMGCars & BidsWeighing the desirable package and service history against those points, fair value realistically lands in the $18,000 to $28,000 range, most likely the low-to-mid $20,000s. At $7,000 with five days remaining, the bidding should climb into that band.Condition and detailsThe car is a well-serviced, high-specification example. Finished in black over black with the rare AMG Performance Package, which adds larger brakes, a Nürburgring-tuned suspension, a limited-slip differential, and a raised top speed, it retains Active Body Control and the folding hardtop, and the supercharged 5.4-liter V8 makes 493 horsepower and 516 lb-ft. The extensive service history includes a replacement transmission at around 70,000 miles, significant ABC and roof-hydraulic work, and hardtop cylinders replaced in November 2025, so much of the expensive maintenance these cars need has already been done.2006 Mercedes-Benz SL55 AMGCars & BidsTwo points deserve real attention. A 2017 service invoice noted the car was not equipped with a catalyst and that the ECU software had been modified, and while the seller mentions a prior owner replaced the catalytic converters, the current emissions configuration and ECU state were not fully clarified, so confirm both before bidding, especially in emissions-testing states. And at 86,900 miles this is a well-used, complex car, though the documented ABC and transmission work meaningfully de-risks ownership; confirm the ABC system is fully functional.2006 Mercedes-Benz SL55 AMGCars & BidsThe car also needs cosmetic attention: minor damage in March 2024 saw the front lip replaced and repainted, and there are chips, swirls, curb rash on two wheels, 2016-dated tires that should be replaced, and steering-wheel wear. One note for clarity: it wears a Black Series badge but is not a genuine SL55 AMG Black Series, so disregard that badge. A pre-purchase inspection focused on the ABC system and emissions setup is essential.2006 Mercedes-Benz SL55 AMGCars & BidsAdvertisementAdvertisementThe offerSpecificationDetailMakeMercedes-BenzModelSL55 AMGYear2006Mileage87,000 milesEngineSupercharged 5.4-liter V8Power493 hp and 516 lb.ft of torqueTransmission5-speed automaticDrive typeRear wheel driveExterior colorBlackInterior colorBlackCurrent bid$7,000, with five days leftInterested in this 2006 Mercedes-Benz SL55 AMG? View the listing here.What makes the SL55 AMG uniqueThe R230 SL was the first all-new SL of the 21st century, replacing the long-running R129 with a sleeker design and a standard power-retractable hardtop. In SL55 AMG form, it gained a supercharged 5.4-liter V8 that turned the elegant roadster into a genuine autobahn stormer, a torque monster capable of humbling many purpose-built sports cars of its era. Its Active Body Control hydraulic suspension virtually eliminated body roll, giving it an uncanny blend of ride comfort and handling composure, and this example's rare AMG Performance Package adds the SL65's braking hardware, a track-tuned suspension, and a higher top speed for a near-SL65 experience without the V12.2006 Mercedes-Benz SL55 AMGCars & BidsThat combination of supercharged muscle, folding-hardtop versatility, and understated luxury is what makes the SL55 such a compelling used buy today. A car that cost well over $100,000 new can now be owned for a fraction of that, delivering serious performance and grand-touring comfort in equal measure.My takeFor the money, this is a lot of car. The SL55 AMG is a supercharged bruiser wrapped in an elegant, comfortable roadster, and this one's rare AMG Performance Package and genuinely impressive service history, including the expensive transmission and ABC work already done, make it a smarter buy than most high-mileage examples. Black-on-black suits it well.AdvertisementAdvertisementFair value sits in the $18,000 to $28,000 range, reflecting the high mileage and cosmetic needs against the desirable package and sorted mechanicals. Go in clear-eyed: nail down the catalyst and ECU situation before you bid, confirm the ABC system works properly, and budget for fresh tires and cosmetic touch-ups. Sort those, and you have a supercharged AMG roadster with the costly maintenance behind it and a lot of grand-touring muscle ahead.Disclaimer: This post is for informational purposes only. We are not a dealership or broker. All vehicle specifications, pricing, and availability are subject to change without notice. We are not responsible for typographical errors, omissions, or the accuracy of the provided information. Please verify all details directly with the seller.Disclaimer: Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission.This story was originally published by Autoblog on Aug 20, 2026, where it first appeared in the Car Buying section. Add Autoblog as a Preferred Source by clicking here.