Wednesday, April 14, 2021
News A 525-Horsepower Mercedes-AMG A 45 “RS” Sounds Really Good

A 525-Horsepower Mercedes-AMG A 45 “RS” Sounds Really Good

Compact super-hot-hatch Mercedes-AMG A 45 RS from Posaidon is temptation.


  • German tuning company Posaidon is responsible for this car.

  • The factory AMG A 45 S already produces 415-horsepower.

  • The lowered sun-yellow car in the images looks incredible.


Although we love reporting on supercars from Koenigsegg or Ferrari, many of us at Motor Illustrated appreciate tuned and well-prepared cars from professional after-market outfits. One such example is this amazing 2020 Mercedes-AMG A 45 S that Posaidon, a German tuner, has given the right amount of attention, and in the proper areas.

The kicker for this AMG A 45 RS is that its boosted 2.0-litre 4-cylinder engine now delivers 525 mind-blowing horsepower. Out of the box, the factory A 45 S (a version we don’t get) is endowed with no less than 415-horsepower. With a larger turbocharger and as-of-yet undisclosed tuning magic, Posaidon has managed to coax 262.5-horsepower per litre of displacement. The result is a compact hatchback that crushes the 0-100km/h spring in 3.5 seconds on the way to a top speed of 323km/h.

Posaidon Mercedes-AMG A 45 RS | Photo: Posaidon

Along with the engine upgrade, Posaidon has fit the car with bigger brakes, a new exhaust system, carbon fibre wheels, and a revised suspension.

The same tuning that’s gone into the A 45 RS can be applied to the Mercedes-AMG CLA 45 and the GLA 45.

Posaidon Mercedes-AMG A 45 RS | Photo: Posaidon

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Matt St-Pierre
Matt St-Pierre
Trained as an Automotive Technician, Matt has two decades of automotive journalism under his belt. He’s done TV, radio, print and this thing called the internet. He’s an avid collector of many 4-wheeled things, all of them under 1,500 kg, holds a recently expired racing license and is a father of two. Life is beautiful. Send Matt an emai

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