2026 Mercedes-Benz A45 AMG S Plus

The Mercedes-AMG A45 S occupies a singular position in the hot hatch world: its 2.0-litre turbocharged four-cylinder produces 421 PS, making it the most powerful series-production four-cylinder engine ever fitted to a road car. The Plus trim adds further equipment over the base S specification, and this 2026 car has covered just 1,200 miles since new — retaining the full Mercedes-Benz factory warranty until March 2029. One owner from new completes a clean provenance.

The exterior finish is Cosmos Black Metallic, paired inside with Two-Tone Titanium Grey Pearl and Black Leather with yellow stitching — a factory combination that references AMG's motorsport identity in a restrained way. The yellow stitching is a deliberate design decision rather than a dealer addition, and the overall spec has a coherence that some louder AMG configurations lack.

Powered through a 4MATIC+ all-wheel-drive system and AMG's eight-speed DCT, the A45 S dispatches 0–62 mph in 3.9 seconds on the way to a 168 mph top speed — figures that trouble far more expensive machinery. At effectively zero miles, this is a near-new car available at a meaningful discount to list price, without the wait associated with ordering a new one.