Mercedes-AMG SLK 55 Black Series R171
The genesis of the Black Series: a raw, fixed-roof V8 track weapon.
- Power
- 400 bhp
- 0–60 mph
- 4.3 s
- Top speed
- 174 mph
- Est. value
- $150k–$270k
About the Mercedes-AMG SLK 55 Black Series R171
The SLK 55 Black Series was the first production model from the AMG Performance Studio, launching the now-legendary 'Black Series' sub-brand. It transformed the standard SLK 55 roadster into a focused track tool by replacing the heavy folding Vario-roof with a fixed carbon-fibre unit and adding wider carbon-fibre front wings. The naturally aspirated 5.4-litre M113 V8 was tuned to 400 PS, exhaling through a revised exhaust system that remains one of AMG's most vocal. With a production run of just 120 units, it is the rarest of all Black Series models and a cornerstone for modern Mercedes-AMG collectors.
Mercedes-AMG SLK 55 Black Series R171 specs
The Mercedes-AMG SLK 55 Black Series R171 produces 400 bhp (298 kW) and 520 Nm (384 lb-ft) of torque. It reaches 60 mph in 4.3 seconds and has a top speed of 174 mph (280 km/h).
| Make | Mercedes-AMG |
|---|---|
| Model | SLK 55 Black Series |
| Generation | R171 |
| Trim | 5.4 V8 |
| Years | 2006–2007 |
| Type | Sports car |
| Body style | Coupé |
| Country | Germany |
| Production | About 120 built |
| Engine | 5.4-litre V8 |
|---|---|
| Displacement | 5,439 cc (5.4 litres) |
| Induction | Naturally aspirated |
| Power | 400 bhp (298 kW) at 5,750 rpm |
| Torque | 520 Nm (384 lb-ft) |
| Redline | 6,700 rpm |
| 0–60 mph | 4.3 s |
| Top speed | 174 mph (280 km/h) |
| Transmission | 7-speed automatic |
| Drivetrain | Rear-wheel drive |
| Weight | 1,495 kg (3,296 lb) |
| Power-to-weight | 268 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
How much is a Mercedes-AMG SLK 55 Black Series R171 worth?
A typical Mercedes-AMG SLK 55 Black Series R171 is estimated to be worth $150,000 – $270,000 (about £112,000 – £201,000).
Values are directional estimates for a typical example, not appraisals. Condition, mileage, history and specification all change what a real car is worth. Pound figures use the exchange rate of 3 November 2026. How values are estimated
Mercedes-AMG SLK 55 Black Series R171 rarity in CarSpot
The Mercedes-AMG SLK 55 Black Series R171 is a Unicorn card in CarSpot, with a rarity score of 100 out of 100. The rarest tier: hypercars, one-offs and cars built in tiny numbers, typically fewer than about 500. A Unicorn card is worth 320 XP.
Each model's tier starts from a 0–100 score based on its value plus its power or production numbers. Once enough players have spotted a model, how often it is spotted can move it up or down one tier. How CarSpot rarity works
Rarity is a collectible game mechanic, not an assessment of real-world scarcity or value.
Mercedes-AMG SLK 55 Black Series R171 fun facts
- The fixed carbon-fibre roof is 25kg lighter than the standard car's folding mechanism and significantly increases torsional rigidity.
- It was never officially sold in the United States, making it a 'forbidden fruit' for North American collectors until it reached import eligibility.
- The car features a massive additional transmission oil cooler and a high-performance steering gear oil cooler to handle sustained track use.
