Mercedes-AMG GT 63 S 4-Door
Why 5.8: The rare halo car that's also genuinely a family's only car: four doors, a real back seat and trunk, AWD for winter, and 630hp for the rest of the year. It gets driven more than almost anything else in this bracket simply because there's no excuse not to.
Layout
Natural habitat
Ride comfort
Sound
The same 4.0 hot-V as the GT coupes, still cracking hard in Race mode through a big rear silencer set. But a four-door carries far more insulation and a longer exhaust run, so the bark arrives softened — unmistakably AMG, and clearly filtered on the way to you.
8-cylinder · turbocharged · 7,000 rpm redline · rated 6.8 / 10 for engine sound
Market value
Median asking price, good condition · €130k (2019) → €78k (2026), trending down · illustrative data
Child seats · ISOFIX
Full ISOFIX/LATCH connectors on both left and right rear seats, each with its own dedicated fitting page in the owner's manual.
No ISOFIX on the front passenger seat — Mercedes' manual only documents fitting for the rear.
Mercedes-Benz Ireland AMG GT 4-Door owner's manual — ISOFIX/i-Size rear seat fitting page
The long version
GT 63 S 4-Door buyers are disproportionately people who considered an E 63 S or RS6 and wanted more presence for similar money — cross-shopping at AMG dealers consistently puts this car against other super-sedans, not against the two-door GT coupe it shares a nameplate with. Because it does everything a normal car does, it accumulates real mileage: school runs, airport trips, the odd autobahn stretch at full derestricted speed, occasional track days for owners who want to see what the chassis can do. It still depreciates like a luxury performance car — options-heavy examples lose value fast in the first three years — but the usage pattern underneath that depreciation looks like an owned car being driven, not a stored asset waiting for the next buyer. The badge still matters to a share of buyers, but daily practicality does the rest of the selling.