The Mercedes-AMG A45 S is a compact powerhouse that redefines what’s possible in a hatchback. With its 2.0L turbocharged engine pushing out an astonishing 421 horsepower, it rockets from 0 to 100 km/h in just 3.9 seconds—making it the most powerful 4-cylinder engine in series production. The aggressive design is matched by an interior loaded with sport seats, AMG performance details, and intuitive tech. Whether carving through winding roads or turning heads in the city, the A45 S offers explosive performance wrapped in everyday luxury.