Mercedes-Benz CLK 63 AMG Black Series
Why 4.7: DougScore 65 and real Black Series provenance. It is more collectable than usable now, but the mechanical anger is central AMG canon.
Layout
Natural habitat
Ride comfort
Sound
A hand-built 6.2 with a DTM-era exhaust, and the most bass-heavy version of that V8 anyone shipped. It is capped by 7,200 rpm and a one-dimensional bellow that never really develops. Sits just under its C-Class successor, which breathes more freely.
8-cylinder · naturally aspirated · 7,200 rpm redline · rated 8.2 / 10 for engine sound
Market value
Median asking price, good condition · €125k (2008) → €156k (2026), trending up · illustrative data
Child seats · ISOFIX
There aren't any — strict two-seater.
No ISOFIX up front. The CLK's front passenger seat instead takes a BabySmart-compatible Mercedes child seat, seatbelt-mounted, which disables the airbag once it's recognized.
Black Series treatment deletes the standard CLK's rear seats for weight, so this is academic in practice.
2003 Mercedes CLK (C209) owner's manual excerpts on BabySmart/ISOFIX fitment (owner-community sourced, not manufacturer documentation)
The long version
The CLK 63 Black Series is the car that taught a generation what modern AMG menace looked like: widebody stance, fixed rear seats deleted, hydraulic steering and the full M156 bark. It was never delicate, and that was the point. The current market treats it as a serious AMG collectible, so the mileage story is cautious, but the car's reputation comes from actual violence rather than badge theatre. It is the missing middle between the live SLK Black Series and the later C63 Black Series.