MERCEDES-BENZ SLK55 AMG
AMG’S hot-rod brings the big-capacity entertainment
AT THE OTHER END OF THE SCALE FROM THE MR2 is the SLK55, a five-and-a-half-litre V8 roadster with nearidentical dimensions to a V6 Lotus Exige. The absolute epitome of AMG’S early 2000s approach, the SLK55 was arguably one of Affalterbach’s wildest creations, taking the small-car, big-engine formula to the next level.
Sold only with a mediocre automatic transmission and weighing more than we’d like, the SLK55 undoubtedly has its flaws. But with even full-fat AMG ‘63’ models today coming with 2-litre fourcylinder engines, the draw of such a ludicrous car is hard to ignore.
In R171 form (2004-2010), output from its M113 5.4-litre naturally aspirated V8 stands at a strong 355bhp, with 376lb ft of torque, considerably more than any of its contemporary rivals and enough for a 4.9sec 0-62mph time and 174mph top speed (when equipped with the Performance Package). Numbers aside, this engine has superb response with character in abundance.
In this early form, Mercedes applied an ‘F1-inspired’ design with an Slr-esque nose and also fitted striking multispoke diamondcut wheels similar to those worn by the later fixed-roof SLK55 Black Series of the same generation.
At the Frankfurt motor show in 2011 the R172 (pictured) was revealed, introducing a complete redesign inside and out. Improved refinement, a snappier gearbox, more interior tech, a capacity increase to 5.5 litres for the V8 and a new 415bhp output made it much more appealing on paper. In reality though, many consider its predecessor to be the model of choice, with a more attractive, retro design, more feelsome steering and a less restrictive exhaust system.
Regardless of which you opt for, the SLK55 has an engaging, responsive chassis that allows for brisk progress. If you can look past the frustratingly intrusive ESP system, it’s a thrilling driver’s car of a kind we’ll never see again.
A V8 AMG might conjure up thoughts of sky-high maintenance costs, but the SLK55 isn’t as ruinous as you might think. The M113 V8 is a reliable unit, so only consumables such as brakes, tyres and fuel increase costs over a more sensible alternative. Road tax isn’t particularly cheap, though, currently standing at £395 and £330 for the R171 and R172 respectively.
When buying used, look out for corrosion on the rear axle and brake lines, and pay close attention to the mechanism for the folding hard-top – a minor issue with the latches between the roof storage compartment and luggage area can cause it to jam open or closed, while water ingress has been reported by some owners. A variety of electrical gremlins can surface following a battery change or jump start, and the optional Airscarf (hot-air fans below the head restraints) is temperamental for some. Mercedes recalled the SLK55 for airbag issues, so ensure this has been seen to.
The classifieds aren’t home to a huge number of SLK55S in 2023, but those that are there are evenly split between early and late cars. Around £13,000 is enough for a leggy R171, but spend closer to £20,000 and sub-40,000-mile Performance Package cars are within reach – on both generations, this package adds uprated brakes, suspension, an Alcantara steering wheel, 18-inch wheels, carbonfibre interior trim, a limited-slip differential and a top speed hike to 174mph. Opt for a later R172 car and you’ll pay from £20,000, rising to just shy of £30,000 for the very best examples.