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MercedesAMG Revives Inline‑Six for GLC 53 to Replace Four‑Cylinder

A revised 3.0‑litre M256 evo uses stronger electric assist to deliver the sound and mid‑range response customers wanted.

Overview

  • Mercedes‑AMG has replaced the unpopular four‑cylinder in the GLC 63 line with a retuned 3.0‑litre inline‑six for the new GLC 53 4Matic+, a move aimed at restoring the engine character buyers expected.
  • The M256 evo makes 330 kW (449 PS) and 600 Nm of torque with a 10‑second overboost up to 640 Nm, aided by a larger 7.5 kW electric auxiliary compressor and a 17 kW integrated starter‑generator in the bell housing.
  • The car pairs the engine with a nine‑speed Speedshift gearbox, fully variable all‑wheel drive and an electronic locking rear differential that adds an SUV first ‘Drift Mode’ for controlled oversteer on closed surfaces.
  • Manufacturers’ figures show 0–100 km/h in 4.2 seconds and top speeds of 250 km/h or 270 km/h with the Driver’s Package, and test drives praise the louder exhaust and strong mid‑to‑high‑range pull while noting some turbo lag at low throttle and a firm ride even in Comfort.
  • The GLC 53 is available now with a starting price around €85,290 for the SUV and about €87,790 for the Coupé, and AMG offers visual and performance options such as a limited Golden Accents pack and the Driver’s Package to raise top speed.