Sleek retractable‑hardtop roadster with sporty poise, engaging engines, and finance from 8.9 % APR

The Mercedes‑Benz SLK (rebranded as the SLC in 2016) is a refined two-seat roadster offering superb driving feel, elegant styling, and everyday practicality. A used SLK for sale delivers a premium driving experience with engaging powertrains—including turbocharged four-cylinders and V6/V8 performance variants—all with the convenience of a hardtop roof. At Carsa, all SLKs include finance from 8.9 % APR, a 90‑day warranty, optional Platinum Maintenance & Repair Cover, and flexible Reserve and Collect.
Why the SLK remains a compelling choice
Known for its solid build, precise retractable hardtop, and compact agility, review platforms describe the SLK as “sporty and refined” and “a thrilling drive in a smaller, more agile package” . The 2016 SLK 300 features a 2.0-litre turbocharged engine with smooth and powerful delivery . The SLK 55 AMG adds V8 muscle and chassis upgrades for serious driver appeal .
Trim Levels and Styles
Body Style:
- 2‑Door Convertible (Roadster) — Compact and stylish, with a retractable hardtop ideal for all-season open-top driving.
Trim and Engine Variants:
- SLK 200 / SLC 200 — Four-cylinder turbocharged entry-level offering an engaging balance of performance and economy; 0–60 mph around 7 seconds depending on year .
- SLK 250 CDI / SLK 250 d (diesel) — Diesel option offering strong torque and long-distance efficiency with 0–100 km/h in about 6.6 seconds .
- SLK 300 / SLC 300 — Turbo four-cylinder, refined and peppy with a 0–60 mph time near 5.8 seconds .
- SLK 350 — V6 petrol delivering up to 306 PS, balanced power and smoothness .
- SLK 55 AMG — V8-powered performance flagship with 360–422 PS; blistering 0–60 mph in ~4.6 s and track-capable dynamics .
- AMG SLC 43 — Twin-turbo V6 (367–390 PS) from the updated SLC range, offering strong acceleration and sporty tuning .
Performance & Real-World Appeal
Most trims offer confident acceleration and responsive handling, ideal for twisty roads or spirited daily driving. The SLK 55 AMG adds V8 flair and track-ready chassis tuning for driver enthusiasts . Reviewers highlight the SLK’s cabin quality and precise roof mechanism as standout features .
Reliability & Owner Insights
The SLK has a solid reliability record, with owner surveys showing ~74% reliability ratings in used contexts . Owners also note rugged engine longevity—e.g., older supercharged engines exceeding 300,000 miles with proper maintenance . Still, it’s wise to check common wear areas in older models, like timing-chain components or manual shifter issues .
Why choose a used SLK for sale on finance?
A used Mercedes‑Benz SLK for sale on finance offers classic convertible charm with modern comfort and performance—without compromising on luxury. With finance from 8.9 % APR, a 90‑day warranty, and comprehensive Reserve and Collect, Carsa ensures your entry into open-top driving is stylish, seamless, and satisfying.
Why buy from Carsa?
Flexible finance
from 8.9% APR
Get a personalised PCP or HP quote with rates from just 8.9% APR (Representative 10.9% APR).No impact on your credit score, see what you’re eligible for in minutes.


Free 90 day warranty
Drive away with added peace of mind. Every Carsa car comes with a 90-day warranty as standard, covering key mechanical and electrical components, so you’re protected from the start.
Checked, verified, and prepared
Every Carsa car gets a full mechanical inspection, a detailed cosmetic prep, and an Auto Trader Provenance check, so you know it looks great, drives reliably, and has a clear history before it hits the forecourt.


Reserve & Collect
Pay a £49 refundable fee and we’ll move any car to your chosen Carsa branch for a hassle-free test drive.

Save £700 on average
Our prices sit £700 below Auto Trader market valuations, on average, so you get instant, haggle-free savings.
We keep things simple and transparent, with fair pricing checked daily to make sure you’re always getting a great deal.
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Part-Exchange
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We use trusted market data to give you a fair offer right away, so you can plan your next move with confidence.

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Car care
Our car care range keeps your vehicle protected, polished, and ready for anything, from extended warranties to smart fixes and everyday essentials.

carsaCover
Keeps you covered where it counts, with extended warranties and insurance for everyday bumps, scuffs, and scrapes. From mechanical protection to cosmetic and wheel care, it’s smart cover for real-world driving.

carsaCover EV
Keeps your electric vehicle covered where it counts, with extended warranties and protection for everyday bumps, scuffs, and scrapes. From key electric components to cosmetic and wheel care, it’s smart cover for real-world electric driving.

carsaProtect
Keep that showroom shine with our premium protection using advanced nanotech to guard paint, fabric, and leather. It resists stains, sun damage, and wear, all backed by a lifetime transferable guarantee. Looks great, lasts longer.
FAQs
Cars come with a manufacturer warranty when new, usually lasting a set number of years or miles. How much cover is left will depend on the car’s age, mileage and the manufacturer’s terms, so we can’t guarantee this for every vehicle. The best way to confirm the exact cover is to check directly with the manufacturer.
If you’d like extra cover, we have warranty products available at the time of purchase.
A lot of our vehicles do come with two keys, but we can only guarantee that each car has at least one. If the car has two keys, we’ll provide both.Because keys can occasionally be misplaced or damaged during transport or preparation, we can only confirm the exact number at the point of test drive. To secure your car for a test drive, simply find it on our website and book with a refundable deposit.
All electric cars use manufacturer-made batteries that are designed to last many years. Modern electric car batteries are carefully managed with cooling systems and safety margins, so they usually last for the lifetime of the car. We don’t provide battery health reports ourselves, so for the most up-to-date details on battery health or warranty cover, please check directly with the manufacturer.
You’ll need to bring your driving licence. If you’re part exchanging, please also bring your V5, service documents, and spare key. If you’re part exchanging and have a private plate, please refer to this FAQ about part exchanging with a private plate
Even if the car is in a zero road tax band, you still need to register it as taxed each year. The process is the same, but you won’t be charged anything. So you’ll need to go online or to the Post Office and 'tax' it (it will show a £0 fee). It’s important to do that so the car is officially recorded as taxed.
Our technicians are highly qualified and experienced. They are trained professionals who specialise in inspecting and preparing used cars to a high standard. Every car undergoes a rigorous inspection by our technicians, who have lots of experience in the motor trade. In short, you can trust that knowledgeable, certified mechanics have checked over and serviced your car before sale.
No, we don’t offer GAP insurance. You would need to arrange GAP insurance separately if you want it.
Yes. We we partner with HiQ to provide servicing, so you can absolutely book your car in with us for routine servicing. Just visit our Carsa Service website or call the service centre, and you can schedule a service appointment at a location that’s convenient for you. We’ll be happy to continue taking care of your car’s maintenance.
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